{"id":63519,"date":"2021-04-20T15:42:27","date_gmt":"2021-04-20T07:42:27","guid":{"rendered":"http:\/\/www.zhushiyao.com\/?p=63519"},"modified":"2021-04-20T15:43:12","modified_gmt":"2021-04-20T07:43:12","slug":"95d9996069","status":"publish","type":"post","link":"http:\/\/www.zhushiyao.com\/?p=63519","title":{"rendered":"Python \u4f18\u5316\u63d0\u901f\u7684 8 \u4e2a\u5c0f\u6280\u5de7"},"content":{"rendered":"
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\u00a0\u00a0 \u4f5c\u8005\uff1a\u5f20\u7693
<\/span><\/section>\n<\/section>\n<\/section>\n<\/section>\n

\u00a0 \u00a0\u6765\u6e90\uff1a<\/span>https:\/\/zhuanlan.zhihu.com\/p\/143052860<\/span><\/p>\n

\n

Python \u662f\u4e00\u79cd\u811a\u672c\u8bed\u8a00\uff0c\u76f8\u6bd4 C\/C++ \u8fd9\u6837\u7684\u7f16\u8bd1\u8bed\u8a00\uff0c\u5728\u6548\u7387\u548c\u6027\u80fd\u65b9\u9762\u5b58\u5728\u4e00\u4e9b\u4e0d\u8db3\u3002\u4f46\u662f\uff0c\u6709\u5f88\u591a\u65f6\u5019\uff0cPython \u7684\u6548\u7387\u5e76\u6ca1\u6709\u60f3\u8c61\u4e2d\u7684\u90a3\u4e48\u5938\u5f20\u3002\u672c\u6587\u5bf9\u4e00\u4e9b Python \u4ee3\u7801\u52a0\u901f\u8fd0\u884c\u7684\u6280\u5de7\u8fdb\u884c\u6574\u7406\u3002<\/p>\n

0. \u4ee3\u7801\u4f18\u5316\u539f\u5219<\/strong><\/h2>\n

\u672c\u6587\u4f1a\u4ecb\u7ecd\u4e0d\u5c11\u7684 Python \u4ee3\u7801\u52a0\u901f\u8fd0\u884c\u7684\u6280\u5de7\u3002\u5728\u6df1\u5165\u4ee3\u7801\u4f18\u5316\u7ec6\u8282\u4e4b\u524d\uff0c\u9700\u8981\u4e86\u89e3\u4e00\u4e9b\u4ee3\u7801\u4f18\u5316\u57fa\u672c\u539f\u5219\u3002<\/p>\n

\u7b2c\u4e00\u4e2a\u57fa\u672c\u539f\u5219\u662f\u4e0d\u8981\u8fc7\u65e9\u4f18\u5316\u3002\u5f88\u591a\u4eba\u4e00\u5f00\u59cb\u5199\u4ee3\u7801\u5c31\u5954\u7740\u6027\u80fd\u4f18\u5316\u7684\u76ee\u6807\uff0c\u201c\u8ba9\u6b63\u786e\u7684\u7a0b\u5e8f\u66f4\u5feb\u8981\u6bd4\u8ba9\u5feb\u901f\u7684\u7a0b\u5e8f\u6b63\u786e\u5bb9\u6613\u5f97\u591a\u201d\u3002\u56e0\u6b64\uff0c\u4f18\u5316\u7684\u524d\u63d0\u662f\u4ee3\u7801\u80fd\u6b63\u5e38\u5de5\u4f5c\u3002\u8fc7\u65e9\u5730\u8fdb\u884c\u4f18\u5316\u53ef\u80fd\u4f1a\u5ffd\u89c6\u5bf9\u603b\u4f53\u6027\u80fd\u6307\u6807\u7684\u628a\u63e1\uff0c\u5728\u5f97\u5230\u5168\u5c40\u7ed3\u679c\u524d\u4e0d\u8981\u4e3b\u6b21\u98a0\u5012\u3002<\/p>\n

\u7b2c\u4e8c\u4e2a\u57fa\u672c\u539f\u5219\u662f\u6743\u8861\u4f18\u5316\u7684\u4ee3\u4ef7\u3002\u4f18\u5316\u662f\u6709\u4ee3\u4ef7\u7684\uff0c\u60f3\u89e3\u51b3\u6240\u6709\u6027\u80fd\u7684\u95ee\u9898\u662f\u51e0\u4e4e\u4e0d\u53ef\u80fd\u7684\u3002\u901a\u5e38\u9762\u4e34\u7684\u9009\u62e9\u662f\u65f6\u95f4\u6362\u7a7a\u95f4\u6216\u7a7a\u95f4\u6362\u65f6\u95f4\u3002\u53e6\u5916\uff0c\u5f00\u53d1\u4ee3\u4ef7\u4e5f\u9700\u8981\u8003\u8651\u3002<\/p>\n

\u7b2c\u4e09\u4e2a\u539f\u5219\u662f\u4e0d\u8981\u4f18\u5316\u90a3\u4e9b\u65e0\u5173\u7d27\u8981\u7684\u90e8\u5206\u3002\u5982\u679c\u5bf9\u4ee3\u7801\u7684\u6bcf\u4e00\u90e8\u5206\u90fd\u53bb\u4f18\u5316\uff0c\u8fd9\u4e9b\u4fee\u6539\u4f1a\u4f7f\u4ee3\u7801\u96be\u4ee5\u9605\u8bfb\u548c\u7406\u89e3\u3002\u5982\u679c\u4f60\u7684\u4ee3\u7801\u8fd0\u884c\u901f\u5ea6\u5f88\u6162\uff0c\u9996\u5148\u8981\u627e\u5230\u4ee3\u7801\u8fd0\u884c\u6162\u7684\u4f4d\u7f6e\uff0c\u901a\u5e38\u662f\u5185\u90e8\u5faa\u73af\uff0c\u4e13\u6ce8\u4e8e\u8fd0\u884c\u6162\u7684\u5730\u65b9\u8fdb\u884c\u4f18\u5316\u3002\u5728\u5176\u4ed6\u5730\u65b9\uff0c\u4e00\u70b9\u65f6\u95f4\u4e0a\u7684\u635f\u5931\u6ca1\u6709\u4ec0\u4e48\u5f71\u54cd\u3002<\/p>\n

1. \u907f\u514d\u5168\u5c40\u53d8\u91cf<\/strong><\/h2>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a26.8\u79d2<\/span>
import\u00a0math

size\u00a0=\u00a010000
for<\/span>\u00a0x\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0y\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0z\u00a0=\u00a0math.sqrt(x)\u00a0+\u00a0math.sqrt(y)
<\/code><\/pre>\n
\u8bb8\u591a\u7a0b\u5e8f\u5458\u521a\u5f00\u59cb\u4f1a\u7528 Python \u8bed\u8a00\u5199\u4e00\u4e9b\u7b80\u5355\u7684\u811a\u672c\uff0c\u5f53\u7f16\u5199\u811a\u672c\u65f6\uff0c\u901a\u5e38\u4e60\u60ef\u4e86\u76f4\u63a5\u5c06\u5176\u5199\u4e3a\u5168\u5c40\u53d8\u91cf\uff0c\u4f8b\u5982\u4e0a\u9762\u7684\u4ee3\u7801\u3002\u4f46\u662f\uff0c\u7531\u4e8e\u5168\u5c40\u53d8\u91cf\u548c\u5c40\u90e8\u53d8\u91cf\u5b9e\u73b0\u65b9\u5f0f\u4e0d\u540c\uff0c\u5b9a\u4e49\u5728\u5168\u5c40\u8303\u56f4\u5185\u7684\u4ee3\u7801\u8fd0\u884c\u901f\u5ea6\u4f1a\u6bd4\u5b9a\u4e49\u5728\u51fd\u6570\u4e2d\u7684\u6162\u4e0d\u5c11\u3002\u901a\u8fc7\u5c06\u811a\u672c\u8bed\u53e5\u653e\u5165\u5230\u51fd\u6570\u4e2d\uff0c\u901a\u5e38\u53ef\u5e26\u6765 15% – 30% \u7684\u901f\u5ea6\u63d0\u5347\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a20.6\u79d2<\/span>
import\u00a0math

def\u00a0main():\u00a0\u00a0#\u00a0\u5b9a\u4e49\u5230\u51fd\u6570\u4e2d\uff0c\u4ee5\u51cf\u5c11\u5168\u90e8\u53d8\u91cf\u4f7f\u7528<\/span>
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0x\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0y\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0z\u00a0=\u00a0math.sqrt(x)\u00a0+\u00a0math.sqrt(y)

main()
<\/code><\/pre>\n
2. \u907f\u514d.<\/strong><\/h2>\n
2.1 \u907f\u514d\u6a21\u5757\u548c\u51fd\u6570\u5c5e\u6027\u8bbf\u95ee<\/strong><\/p>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a14.5\u79d2<\/span>
import\u00a0math

def\u00a0computeSqrt(size:\u00a0int):
\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0[]
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result.append(math.sqrt(i))
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0computeSqrt(size)

main()
<\/code><\/pre>\n
\u6bcf\u6b21\u4f7f\u7528.<\/code>\uff08\u5c5e\u6027\u8bbf\u95ee\u64cd\u4f5c\u7b26\u65f6\uff09\u4f1a\u89e6\u53d1\u7279\u5b9a\u7684\u65b9\u6cd5\uff0c\u5982__getattribute__()<\/code>\u548c__getattr__()<\/code>\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u4f1a\u8fdb\u884c\u5b57\u5178\u64cd\u4f5c\uff0c\u56e0\u6b64\u4f1a\u5e26\u6765\u989d\u5916\u7684\u65f6\u95f4\u5f00\u9500\u3002\u901a\u8fc7from import<\/code>\u8bed\u53e5\uff0c\u53ef\u4ee5\u6d88\u9664\u5c5e\u6027\u8bbf\u95ee\u3002<\/p>\n
#\u00a0\u7b2c\u4e00\u6b21\u4f18\u5316\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a10.9\u79d2<\/span>
from\u00a0math\u00a0import\u00a0sqrt

def\u00a0computeSqrt(size:\u00a0int):
\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0[]
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result.append(sqrt(i))\u00a0\u00a0#\u00a0\u907f\u514dmath.sqrt\u7684\u4f7f\u7528<\/span>
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0computeSqrt(size)

main()
<\/code><\/pre>\n
\u5728\u7b2c 1 \u8282\u4e2d\u6211\u4eec\u8bb2\u5230\uff0c\u5c40\u90e8\u53d8\u91cf\u7684\u67e5\u627e\u4f1a\u6bd4\u5168\u5c40\u53d8\u91cf\u66f4\u5feb\uff0c\u56e0\u6b64\u5bf9\u4e8e\u9891\u7e41\u8bbf\u95ee\u7684\u53d8\u91cfsqrt<\/code>\uff0c\u901a\u8fc7\u5c06\u5176\u6539\u4e3a\u5c40\u90e8\u53d8\u91cf\u53ef\u4ee5\u52a0\u901f\u8fd0\u884c\u3002<\/p>\n
#\u00a0\u7b2c\u4e8c\u6b21\u4f18\u5316\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a9.9\u79d2<\/span>
import\u00a0math

def\u00a0computeSqrt(size:\u00a0int):
\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0[]
\u00a0\u00a0\u00a0\u00a0sqrt\u00a0=\u00a0math.sqrt\u00a0\u00a0#\u00a0\u8d4b\u503c\u7ed9\u5c40\u90e8\u53d8\u91cf<\/span>
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result.append(sqrt(i))\u00a0\u00a0#\u00a0\u907f\u514dmath.sqrt\u7684\u4f7f\u7528<\/span>
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0computeSqrt(size)

main()
<\/code><\/pre>\n
\u9664\u4e86math.sqrt<\/code>\u5916\uff0ccomputeSqrt<\/code>\u51fd\u6570\u4e2d\u8fd8\u6709.<\/code>\u7684\u5b58\u5728\uff0c\u90a3\u5c31\u662f\u8c03\u7528list<\/code>\u7684append<\/code>\u65b9\u6cd5\u3002\u901a\u8fc7\u5c06\u8be5\u65b9\u6cd5\u8d4b\u503c\u7ed9\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf\uff0c\u53ef\u4ee5\u5f7b\u5e95\u6d88\u9664computeSqrt<\/code>\u51fd\u6570\u4e2dfor<\/code>\u5faa\u73af\u5185\u90e8\u7684.<\/code>\u4f7f\u7528\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a7.9\u79d2<\/span>
import\u00a0math

def\u00a0computeSqrt(size:\u00a0int):
\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0[]
\u00a0\u00a0\u00a0\u00a0append\u00a0=\u00a0result.append
\u00a0\u00a0\u00a0\u00a0sqrt\u00a0=\u00a0math.sqrt\u00a0\u00a0\u00a0\u00a0#\u00a0\u8d4b\u503c\u7ed9\u5c40\u90e8\u53d8\u91cf<\/span>
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0append(sqrt(i))\u00a0\u00a0#\u00a0\u907f\u514d\u00a0result.append\u00a0\u548c\u00a0math.sqrt\u00a0\u7684\u4f7f\u7528<\/span>
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0computeSqrt(size)

main()
<\/code><\/pre>\n
2.2 \u907f\u514d\u7c7b\u5185\u5c5e\u6027\u8bbf\u95ee<\/strong><\/h2>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a10.4\u79d2<\/span>
import\u00a0math
from\u00a0typing\u00a0import\u00a0List

class\u00a0DemoClass:
\u00a0\u00a0\u00a0\u00a0def\u00a0__init__(self,\u00a0value:\u00a0int):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0self._value\u00a0=\u00a0value
\u00a0\u00a0\u00a0\u00a0
\u00a0\u00a0\u00a0\u00a0def\u00a0computeSqrt(self,\u00a0size:\u00a0int)\u00a0->\u00a0List[float<\/span>]:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0[]
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0append\u00a0=\u00a0result.append
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sqrt\u00a0=\u00a0math.sqrt
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0append(sqrt(self._value))
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0demo_instance\u00a0=\u00a0DemoClass(size)
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0demo_instance.computeSqrt(size)

main()
<\/code><\/pre>\n
\u907f\u514d.<\/code>\u7684\u539f\u5219\u4e5f\u9002\u7528\u4e8e\u7c7b\u5185\u5c5e\u6027\uff0c\u8bbf\u95eeself._value<\/code>\u7684\u901f\u5ea6\u4f1a\u6bd4\u8bbf\u95ee\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf\u66f4\u6162\u4e00\u4e9b\u3002\u901a\u8fc7\u5c06\u9700\u8981\u9891\u7e41\u8bbf\u95ee\u7684\u7c7b\u5185\u5c5e\u6027\u8d4b\u503c\u7ed9\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf\uff0c\u53ef\u4ee5\u63d0\u5347\u4ee3\u7801\u8fd0\u884c\u901f\u5ea6\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a8.0\u79d2<\/span>
import\u00a0math
from\u00a0typing\u00a0import\u00a0List

class\u00a0DemoClass:
\u00a0\u00a0\u00a0\u00a0def\u00a0__init__(self,\u00a0value:\u00a0int):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0self._value\u00a0=\u00a0value
\u00a0\u00a0\u00a0\u00a0
\u00a0\u00a0\u00a0\u00a0def\u00a0computeSqrt(self,\u00a0size:\u00a0int)\u00a0->\u00a0List[float<\/span>]:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0[]
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0append\u00a0=\u00a0result.append
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sqrt\u00a0=\u00a0math.sqrt
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0value\u00a0=\u00a0self._value
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0append(sqrt(value))\u00a0\u00a0#\u00a0\u907f\u514d\u00a0self._value\u00a0\u7684\u4f7f\u7528<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0demo_instance\u00a0=\u00a0DemoClass(size)
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0demo_instance.computeSqrt(size)

main()
<\/code><\/pre>\n
3. \u907f\u514d\u4e0d\u5fc5\u8981\u7684\u62bd\u8c61<\/strong><\/h2>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a0.55\u79d2<\/span>
class\u00a0DemoClass:
\u00a0\u00a0\u00a0\u00a0def\u00a0__init__(self,\u00a0value:\u00a0int):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0self.value\u00a0=\u00a0value

\u00a0\u00a0\u00a0\u00a0@property
\u00a0\u00a0\u00a0\u00a0def\u00a0value(self)\u00a0->\u00a0int:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0self._value

\u00a0\u00a0\u00a0\u00a0@value.setter
\u00a0\u00a0\u00a0\u00a0def\u00a0value(self,\u00a0x:\u00a0int):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0self._value\u00a0=\u00a0x

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a01000000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0demo_instance\u00a0=\u00a0DemoClass(size)
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0value\u00a0=\u00a0demo_instance.value
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0demo_instance.value\u00a0=\u00a0i

main()
<\/code><\/pre>\n
\u4efb\u4f55\u65f6\u5019\u5f53\u4f60\u4f7f\u7528\u989d\u5916\u7684\u5904\u7406\u5c42\uff08\u6bd4\u5982\u88c5\u9970\u5668\u3001\u5c5e\u6027\u8bbf\u95ee\u3001\u63cf\u8ff0\u5668\uff09\u53bb\u5305\u88c5\u4ee3\u7801\u65f6\uff0c\u90fd\u4f1a\u8ba9\u4ee3\u7801\u53d8\u6162\u3002\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u91cd\u65b0\u8fdb\u884c\u5ba1\u89c6\u4f7f\u7528\u5c5e\u6027\u8bbf\u95ee\u5668\u7684\u5b9a\u4e49\u662f\u5426\u6709\u5fc5\u8981\uff0c\u4f7f\u7528getter\/setter<\/code>\u51fd\u6570\u5bf9\u5c5e\u6027\u8fdb\u884c\u8bbf\u95ee\u901a\u5e38\u662f C\/C++ \u7a0b\u5e8f\u5458\u9057\u7559\u4e0b\u6765\u7684\u4ee3\u7801\u98ce\u683c\u3002\u5982\u679c\u771f\u7684\u6ca1\u6709\u5fc5\u8981\uff0c\u5c31\u4f7f\u7528\u7b80\u5355\u5c5e\u6027\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a0.33\u79d2<\/span>
class\u00a0DemoClass:
\u00a0\u00a0\u00a0\u00a0def\u00a0__init__(self,\u00a0value:\u00a0int):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0self.value\u00a0=\u00a0value\u00a0\u00a0#\u00a0\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5c5e\u6027\u8bbf\u95ee\u5668<\/span>

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a01000000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0demo_instance\u00a0=\u00a0DemoClass(size)
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0value\u00a0=\u00a0demo_instance.value
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0demo_instance.value\u00a0=\u00a0i

main()
<\/code><\/pre>\n
4. \u907f\u514d\u6570\u636e\u590d\u5236<\/strong><\/h2>\n
4.1 \u907f\u514d\u65e0\u610f\u4e49\u7684\u6570\u636e\u590d\u5236<\/strong><\/p>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a6.5\u79d2<\/span>
def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0value\u00a0=\u00a0range(size)
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0value_list\u00a0=\u00a0[x\u00a0for<\/span>\u00a0x\u00a0in<\/span>\u00a0value]
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0square_list\u00a0=\u00a0[x\u00a0*\u00a0x\u00a0for<\/span>\u00a0x\u00a0in<\/span>\u00a0value_list]

main()
<\/code><\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u4e2dvalue_list<\/code>\u5b8c\u5168\u6ca1\u6709\u5fc5\u8981\uff0c\u8fd9\u4f1a\u521b\u5efa\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u7ed3\u6784\u6216\u590d\u5236\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a4.8\u79d2<\/span>
def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0value\u00a0=\u00a0range(size)
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0square_list\u00a0=\u00a0[x\u00a0*\u00a0x\u00a0for<\/span>\u00a0x\u00a0in<\/span>\u00a0value]\u00a0\u00a0#\u00a0\u907f\u514d\u65e0\u610f\u4e49\u7684\u590d\u5236<\/span>

main()
<\/code><\/pre>\n
\u53e6\u5916\u4e00\u79cd\u60c5\u51b5\u662f\u5bf9 Python \u7684\u6570\u636e\u5171\u4eab\u673a\u5236\u8fc7\u4e8e\u504f\u6267\uff0c\u5e76\u6ca1\u6709\u5f88\u597d\u5730\u7406\u89e3\u6216\u4fe1\u4efb Python \u7684\u5185\u5b58\u6a21\u578b\uff0c\u6ee5\u7528 copy.deepcopy()<\/code>\u4e4b\u7c7b\u7684\u51fd\u6570\u3002\u901a\u5e38\u5728\u8fd9\u4e9b\u4ee3\u7801\u4e2d\u662f\u53ef\u4ee5\u53bb\u6389\u590d\u5236\u64cd\u4f5c\u7684\u3002<\/p>\n
4.2 \u4ea4\u6362\u503c\u65f6\u4e0d\u4f7f\u7528\u4e2d\u95f4\u53d8\u91cf<\/strong><\/p>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a0.07\u79d2<\/span>
def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a01000000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a\u00a0=\u00a03
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0b\u00a0=\u00a05
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0temp\u00a0=\u00a0a
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a\u00a0=\u00a0b
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0b\u00a0=\u00a0temp

main()
<\/code><\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u5728\u4ea4\u6362\u503c\u65f6\u521b\u5efa\u4e86\u4e00\u4e2a\u4e34\u65f6\u53d8\u91cftemp<\/code>\uff0c\u5982\u679c\u4e0d\u501f\u52a9\u4e2d\u95f4\u53d8\u91cf\uff0c\u4ee3\u7801\u66f4\u4e3a\u7b80\u6d01\u3001\u4e14\u8fd0\u884c\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a0.06\u79d2<\/span>
def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a01000000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a\u00a0=\u00a03
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0b\u00a0=\u00a05
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a,\u00a0b\u00a0=\u00a0b,\u00a0a\u00a0\u00a0#\u00a0\u4e0d\u501f\u52a9\u4e2d\u95f4\u53d8\u91cf<\/span>

main()
<\/code><\/pre>\n
4.3 \u5b57\u7b26\u4e32\u62fc\u63a5\u7528join\u800c\u4e0d\u662f+<\/strong><\/p>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a2.6\u79d2<\/span>
import\u00a0string
from\u00a0typing\u00a0import\u00a0List

def\u00a0concatString(string_list:\u00a0List[str])\u00a0->\u00a0str:
\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0''<\/span>
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0str_i\u00a0in<\/span>\u00a0string_list:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0+=\u00a0str_i
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0string_list\u00a0=\u00a0list(string.ascii_letters\u00a0*\u00a0100)
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(10000):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0concatString(string_list)

main()
<\/code><\/pre>\n
\u5f53\u4f7f\u7528a + b<\/code>\u62fc\u63a5\u5b57\u7b26\u4e32\u65f6\uff0c\u7531\u4e8e Python \u4e2d\u5b57\u7b26\u4e32\u662f\u4e0d\u53ef\u53d8\u5bf9\u8c61\uff0c\u5176\u4f1a\u7533\u8bf7\u4e00\u5757\u5185\u5b58\u7a7a\u95f4\uff0c\u5c06a<\/code>\u548cb<\/code>\u5206\u522b\u590d\u5236\u5230\u8be5\u65b0\u7533\u8bf7\u7684\u5185\u5b58\u7a7a\u95f4\u4e2d\u3002\u56e0\u6b64\uff0c\u5982\u679c\u8981\u62fc\u63a5 n\u00a0\u4e2a\u5b57\u7b26\u4e32\uff0c\u4f1a\u4ea7\u751f n-1\u00a0<\/span>\u4e2a\u4e2d\u95f4\u7ed3\u679c\uff0c\u6bcf\u4ea7\u751f\u4e00\u4e2a\u4e2d\u95f4\u7ed3\u679c\u90fd\u9700\u8981\u7533\u8bf7\u548c\u590d\u5236\u4e00\u6b21\u5185\u5b58\uff0c\u4e25\u91cd\u5f71\u54cd\u8fd0\u884c\u6548\u7387\u3002\u800c\u4f7f\u7528join()<\/code>\u62fc\u63a5\u5b57\u7b26\u4e32\u65f6\uff0c\u4f1a\u9996\u5148\u8ba1\u7b97\u51fa\u9700\u8981\u7533\u8bf7\u7684\u603b\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u7136\u540e\u4e00\u6b21\u6027\u5730\u7533\u8bf7\u6240\u9700\u5185\u5b58\uff0c\u5e76\u5c06\u6bcf\u4e2a\u5b57\u7b26\u4e32\u5143\u7d20\u590d\u5236\u5230\u8be5\u5185\u5b58\u4e2d\u53bb\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a0.3\u79d2<\/span>
import\u00a0string
from\u00a0typing\u00a0import\u00a0List

def\u00a0concatString(string_list:\u00a0List[str])\u00a0->\u00a0str:
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0''<\/span>.join(string_list)\u00a0\u00a0#\u00a0\u4f7f\u7528\u00a0join\u00a0\u800c\u4e0d\u662f\u00a0+<\/span>

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0string_list\u00a0=\u00a0list(string.ascii_letters\u00a0*\u00a0100)
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(10000):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0concatString(string_list)

main()
<\/code><\/pre>\n
5. \u5229\u7528if\u6761\u4ef6\u7684\u77ed\u8def\u7279\u6027<\/strong><\/h2>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a0.05\u79d2<\/span>
from\u00a0typing\u00a0import\u00a0List

def\u00a0concatString(string_list:\u00a0List[str])\u00a0->\u00a0str:
\u00a0\u00a0\u00a0\u00a0abbreviations\u00a0=\u00a0{'cf.'<\/span>,\u00a0'e.g.'<\/span>,\u00a0'ex.'<\/span>,\u00a0'etc.'<\/span>,\u00a0'flg.'<\/span>,\u00a0'i.e.'<\/span>,\u00a0'Mr.'<\/span>,\u00a0'vs.'<\/span>}
\u00a0\u00a0\u00a0\u00a0abbr_count\u00a0=\u00a00
\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0''<\/span>
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0str_i\u00a0in<\/span>\u00a0string_list:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0str_i\u00a0in<\/span>\u00a0abbreviations:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0+=\u00a0str_i
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(10000):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string_list\u00a0=\u00a0['Mr.'<\/span>,\u00a0'Hat'<\/span>,\u00a0'is'<\/span>,\u00a0'Chasing'<\/span>,\u00a0'the'<\/span>,\u00a0'black'<\/span>,\u00a0'cat'<\/span>,\u00a0'.'<\/span>]
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0concatString(string_list)

main()
<\/code><\/pre>\n
if<\/code> \u6761\u4ef6\u7684\u77ed\u8def\u7279\u6027\u662f\u6307\u5bf9if a and b<\/code>\u8fd9\u6837\u7684\u8bed\u53e5\uff0c \u5f53a<\/code>\u4e3aFalse<\/code>\u65f6\u5c06\u76f4\u63a5\u8fd4\u56de\uff0c\u4e0d\u518d\u8ba1\u7b97b<\/code>\uff1b\u5bf9\u4e8eif a or b<\/code>\u8fd9\u6837\u7684\u8bed\u53e5\uff0c\u5f53a<\/code>\u4e3aTrue<\/code>\u65f6\u5c06\u76f4\u63a5\u8fd4\u56de\uff0c\u4e0d\u518d\u8ba1\u7b97b<\/code>\u3002\u56e0\u6b64\uff0c \u4e3a\u4e86\u8282\u7ea6\u8fd0\u884c\u65f6\u95f4\uff0c\u5bf9\u4e8eor<\/code>\u8bed\u53e5\uff0c\u5e94\u8be5\u5c06\u503c\u4e3aTrue<\/code>\u53ef\u80fd\u6027\u6bd4\u8f83\u9ad8\u7684\u53d8\u91cf\u5199\u5728or<\/code>\u524d\uff0c\u800cand<\/code>\u5e94\u8be5\u63a8\u540e\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\uff0c\u4ee3\u7801\u8017\u65f6\uff1a0.03\u79d2<\/span>
from\u00a0typing\u00a0import\u00a0List

def\u00a0concatString(string_list:\u00a0List[str])\u00a0->\u00a0str:
\u00a0\u00a0\u00a0\u00a0abbreviations\u00a0=\u00a0{'cf.'<\/span>,\u00a0'e.g.'<\/span>,\u00a0'ex.'<\/span>,\u00a0'etc.'<\/span>,\u00a0'flg.'<\/span>,\u00a0'i.e.'<\/span>,\u00a0'Mr.'<\/span>,\u00a0'vs.'<\/span>}
\u00a0\u00a0\u00a0\u00a0abbr_count\u00a0=\u00a00
\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0''<\/span>
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0str_i\u00a0in<\/span>\u00a0string_list:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0str_i[-1]\u00a0==\u00a0'.'<\/span>\u00a0and\u00a0str_i\u00a0in<\/span>\u00a0abbreviations:\u00a0\u00a0#\u00a0\u5229\u7528\u00a0if\u00a0\u6761\u4ef6\u7684\u77ed\u8def\u7279\u6027<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0+=\u00a0str_i
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0result

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(10000):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string_list\u00a0=\u00a0['Mr.'<\/span>,\u00a0'Hat'<\/span>,\u00a0'is'<\/span>,\u00a0'Chasing'<\/span>,\u00a0'the'<\/span>,\u00a0'black'<\/span>,\u00a0'cat'<\/span>,\u00a0'.'<\/span>]
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0result\u00a0=\u00a0concatString(string_list)

main()
<\/code><\/pre>\n
6. \u5faa\u73af\u4f18\u5316<\/strong><\/h2>\n
6.1 \u7528for\u5faa\u73af\u4ee3\u66ffwhile\u5faa\u73af<\/strong><\/p>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a6.7\u79d2<\/span>
def\u00a0computeSum(size:\u00a0int)\u00a0->\u00a0int:
\u00a0\u00a0\u00a0\u00a0sum_\u00a0=\u00a00
\u00a0\u00a0\u00a0\u00a0i\u00a0=\u00a00
\u00a0\u00a0\u00a0\u00a0while<\/span>\u00a0i\u00a0<\u00a0size:
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum_\u00a0+=\u00a0i
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0i\u00a0+=\u00a01
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0sum_

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum_\u00a0=\u00a0computeSum(size)

main()
<\/code><\/pre>\n
Python \u7684for<\/code>\u5faa\u73af\u6bd4while<\/code>\u5faa\u73af\u5feb\u4e0d\u5c11\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a4.3\u79d2<\/span>
def\u00a0computeSum(size:\u00a0int)\u00a0->\u00a0int:
\u00a0\u00a0\u00a0\u00a0sum_\u00a0=\u00a00
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):\u00a0\u00a0#\u00a0for\u00a0\u5faa\u73af\u4ee3\u66ff\u00a0while\u00a0\u5faa\u73af<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum_\u00a0+=\u00a0i
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0sum_

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum_\u00a0=\u00a0computeSum(size)

main()
<\/code><\/pre>\n
6.2 \u4f7f\u7528\u9690\u5f0ffor\u5faa\u73af\u4ee3\u66ff\u663e\u5f0ffor\u5faa\u73af<\/strong><\/p>\n
\u9488\u5bf9\u4e0a\u9762\u7684\u4f8b\u5b50\uff0c\u66f4\u8fdb\u4e00\u6b65\u53ef\u4ee5\u7528\u9690\u5f0ffor<\/code>\u5faa\u73af\u6765\u66ff\u4ee3\u663e\u5f0ffor<\/code>\u5faa\u73af<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a1.7\u79d2<\/span>
def\u00a0computeSum(size:\u00a0int)\u00a0->\u00a0int:
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0sum(range(size))\u00a0\u00a0#\u00a0\u9690\u5f0f\u00a0for\u00a0\u5faa\u73af\u4ee3\u66ff\u663e\u5f0f\u00a0for\u00a0\u5faa\u73af<\/span>

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum\u00a0=\u00a0computeSum(size)

main()
<\/code><\/pre>\n
6.3 \u51cf\u5c11\u5185\u5c42for\u5faa\u73af\u7684\u8ba1\u7b97<\/strong><\/p>\n
#\u00a0\u4e0d\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a12.8\u79d2<\/span>
import\u00a0math

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0sqrt\u00a0=\u00a0math.sqrt
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0x\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0y\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0z\u00a0=\u00a0sqrt(x)\u00a0+\u00a0sqrt(y)

main()\u00a0
<\/code><\/pre>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u4e2dsqrt(x)<\/code>\u4f4d\u4e8e\u5185\u4fa7for<\/code>\u5faa\u73af\uff0c \u6bcf\u6b21\u8bad\u7ec3\u8fc7\u7a0b\u4e2d\u90fd\u4f1a\u91cd\u65b0\u8ba1\u7b97\u4e00\u6b21\uff0c\u589e\u52a0\u4e86\u65f6\u95f4\u5f00\u9500\u3002<\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a7.0\u79d2<\/span>
import\u00a0math

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0sqrt\u00a0=\u00a0math.sqrt
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0x\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sqrt_x\u00a0=\u00a0sqrt(x)\u00a0\u00a0#\u00a0\u51cf\u5c11\u5185\u5c42\u00a0for\u00a0\u5faa\u73af\u7684\u8ba1\u7b97<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0y\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0z\u00a0=\u00a0sqrt_x\u00a0+\u00a0sqrt(y)

main()\u00a0
<\/code><\/pre>\n
7. \u4f7f\u7528numba.jit<\/strong><\/h2>\n
\u6211\u4eec\u6cbf\u7528\u4e0a\u9762\u4ecb\u7ecd\u8fc7\u7684\u4f8b\u5b50\uff0c\u5728\u6b64\u57fa\u7840\u4e0a\u4f7f\u7528numba.jit<\/code>\u3002numba<\/code>\u53ef\u4ee5\u5c06 Python \u51fd\u6570 JIT \u7f16\u8bd1\u4e3a\u673a\u5668\u7801\u6267\u884c\uff0c\u5927\u5927\u63d0\u9ad8\u4ee3\u7801\u8fd0\u884c\u901f\u5ea6\u3002\u5173\u4e8enumba<\/code>\u7684\u66f4\u591a\u4fe1\u606f\u89c1\u4e0b\u9762\u7684\u4e3b\u9875\uff1ahttp:\/\/numba.pydata.org\/numba.pydata.org<\/span><\/p>\n
#\u00a0\u63a8\u8350\u5199\u6cd5\u3002\u4ee3\u7801\u8017\u65f6\uff1a0.62\u79d2<\/span>
import\u00a0numba

@numba.jit
def\u00a0computeSum(size:\u00a0float<\/span>)\u00a0->\u00a0int:
\u00a0\u00a0\u00a0\u00a0sum\u00a0=\u00a00
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0i\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum\u00a0+=\u00a0i
\u00a0\u00a0\u00a0\u00a0return<\/span>\u00a0sum

def\u00a0main():
\u00a0\u00a0\u00a0\u00a0size\u00a0=\u00a010000
\u00a0\u00a0\u00a0\u00a0for<\/span>\u00a0_\u00a0in<\/span>\u00a0range(size):
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum\u00a0=\u00a0computeSum(size)

main()
<\/code><\/pre>\n
8. \u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784<\/strong><\/h2>\n
Python \u5185\u7f6e\u7684\u6570\u636e\u7ed3\u6784\u5982str<\/code>, tuple<\/code>, list<\/code>, set<\/code>, dict<\/code>\u5e95\u5c42\u90fd\u662f C \u5b9e\u73b0\u7684\uff0c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u81ea\u5df1\u5b9e\u73b0\u65b0\u7684\u6570\u636e\u7ed3\u6784\u60f3\u5728\u6027\u80fd\u4e0a\u8fbe\u5230\u5185\u7f6e\u7684\u901f\u5ea6\u51e0\u4e4e\u662f\u4e0d\u53ef\u80fd\u7684\u3002<\/p>\n
list<\/code>\u7c7b\u4f3c\u4e8e C++ \u4e2d\u7684std::vector<\/code>\uff0c\u662f\u4e00\u79cd\u52a8\u6001\u6570\u7ec4\u3002\u5176\u4f1a\u9884\u5206\u914d\u4e00\u5b9a\u5185\u5b58\u7a7a\u95f4\uff0c\u5f53\u9884\u5206\u914d\u7684\u5185\u5b58\u7a7a\u95f4\u7528\u5b8c\uff0c\u53c8\u7ee7\u7eed\u5411\u5176\u4e2d\u6dfb\u52a0\u5143\u7d20\u65f6\uff0c\u4f1a\u7533\u8bf7\u4e00\u5757\u66f4\u5927\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u7136\u540e\u5c06\u539f\u6709\u7684\u6240\u6709\u5143\u7d20\u90fd\u590d\u5236\u8fc7\u53bb\uff0c\u4e4b\u540e\u9500\u6bc1\u4e4b\u524d\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u518d\u63d2\u5165\u65b0\u5143\u7d20\u3002<\/p>\n
\u5220\u9664\u5143\u7d20\u65f6\u64cd\u4f5c\u7c7b\u4f3c\uff0c\u5f53\u5df2\u4f7f\u7528\u5185\u5b58\u7a7a\u95f4\u6bd4\u9884\u5206\u914d\u5185\u5b58\u7a7a\u95f4\u7684\u4e00\u534a\u8fd8\u5c11\u65f6\uff0c\u4f1a\u53e6\u5916\u7533\u8bf7\u4e00\u5757\u5c0f\u5185\u5b58\uff0c\u505a\u4e00\u6b21\u5143\u7d20\u590d\u5236\uff0c\u4e4b\u540e\u9500\u6bc1\u539f\u6709\u5927\u5185\u5b58\u7a7a\u95f4\u3002<\/p>\n
\u56e0\u6b64\uff0c\u5982\u679c\u6709\u9891\u7e41\u7684\u65b0\u589e\u3001\u5220\u9664\u64cd\u4f5c\uff0c\u65b0\u589e\u3001\u5220\u9664\u7684\u5143\u7d20\u6570\u91cf\u53c8\u5f88\u591a\u65f6\uff0clist\u7684\u6548\u7387\u4e0d\u9ad8\u3002\u6b64\u65f6\uff0c\u5e94\u8be5\u8003\u8651\u4f7f\u7528collections.deque<\/code>\u3002collections.deque<\/code>\u662f\u53cc\u7aef\u961f\u5217\uff0c\u540c\u65f6\u5177\u5907\u6808\u548c\u961f\u5217\u7684\u7279\u6027\uff0c\u80fd\u591f\u5728\u4e24\u7aef\u8fdb\u884c O(1) \u590d\u6742\u5ea6\u7684\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n
list<\/code>\u7684\u67e5\u627e\u64cd\u4f5c\u4e5f\u975e\u5e38\u8017\u65f6\u3002\u5f53\u9700\u8981\u5728list<\/code>\u9891\u7e41\u67e5\u627e\u67d0\u4e9b\u5143\u7d20\uff0c\u6216\u9891\u7e41\u6709\u5e8f\u8bbf\u95ee\u8fd9\u4e9b\u5143\u7d20\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528bisect<\/code>\u7ef4\u62a4list<\/code>\u5bf9\u8c61\u6709\u5e8f\u5e76\u5728\u5176\u4e2d\u8fdb\u884c\u4e8c\u5206\u67e5\u627e\uff0c\u63d0\u5347\u67e5\u627e\u7684\u6548\u7387\u3002<\/p>\n
\u53e6\u5916\u4e00\u4e2a\u5e38\u89c1\u9700\u6c42\u662f\u67e5\u627e\u6781\u5c0f\u503c\u6216\u6781\u5927\u503c\uff0c\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528heapq<\/code>\u6a21\u5757\u5c06list<\/code>\u8f6c\u5316\u4e3a\u4e00\u4e2a\u5806\uff0c\u4f7f\u5f97\u83b7\u53d6\u6700\u5c0f\u503c\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662f O(1)\u3002<\/span><\/p>\n
\u4e0b\u9762\u7684\u7f51\u9875\u7ed9\u51fa\u4e86\u5e38\u7528\u7684 Python \u6570\u636e\u7ed3\u6784\u7684\u5404\u9879\u64cd\u4f5c\u7684\u65f6\u95f4\u590d\u6742\u5ea6\uff1ahttps:\/\/wiki.python.org\/moin\/TimeComplexity<\/p>\n
\u53c2\u8003\u8d44\u6599<\/strong><\/h2>\n