{"id":1164880,"date":"2025-01-15T15:13:26","date_gmt":"2025-01-15T07:13:26","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1164880.html"},"modified":"2025-01-15T15:13:28","modified_gmt":"2025-01-15T07:13:28","slug":"%e5%a6%82%e4%bd%95%e5%b0%86%e6%a8%a1%e5%9d%97%e5%af%bc%e5%85%a5python","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1164880.html","title":{"rendered":"\u5982\u4f55\u5c06\u6a21\u5757\u5bfc\u5165python"},"content":{"rendered":"

\"\u5982\u4f55\u5c06\u6a21\u5757\u5bfc\u5165python\"<\/p>\n

\u5982\u4f55\u5c06\u6a21\u5757\u5bfc\u5165Python\uff1a\u4f7f\u7528import\u8bed\u53e5\u3001\u4f7f\u7528from…import\u8bed\u53e5\u3001\u4f7f\u7528as\u5173\u952e\u5b57\u8fdb\u884c\u91cd\u547d\u540d\u3001\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757<\/strong>\u3002\u5728Python\u4e2d\uff0c\u6a21\u5757\u662f\u4e00\u4e2a\u5305\u542bPython\u4ee3\u7801\u7684\u6587\u4ef6\uff0c\u6a21\u5757\u53ef\u4ee5\u5b9a\u4e49\u51fd\u6570\u3001\u7c7b\u548c\u53d8\u91cf\uff0c\u4e5f\u53ef\u4ee5\u5305\u542b\u53ef\u6267\u884c\u7684\u4ee3\u7801\u3002\u5bfc\u5165\u6a21\u5757\u6709\u52a9\u4e8e\u4ee3\u7801\u7684\u7ec4\u7ec7\u548c\u91cd\u7528\u3002\u4e0b\u9762\uff0c\u6211\u4eec\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u4f7f\u7528import\u8bed\u53e5\u6765\u5bfc\u5165\u6a21\u5757\u3002<\/p>\n<\/p>\n

\u4f7f\u7528import\u8bed\u53e5\u5bfc\u5165\u6a21\u5757<\/strong>\uff1a\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\uff0c\u901a\u8fc7import\u8bed\u53e5\u53ef\u4ee5\u5c06\u6574\u4e2a\u6a21\u5757\u5bfc\u5165\u5230\u5f53\u524d\u7684\u547d\u540d\u7a7a\u95f4\u4e2d\u3002<\/p>\n<\/p>\n

import math<\/p>\n
print(math.sqrt(16))  # \u8f93\u51fa\uff1a4.0<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e00\u3001\u4f7f\u7528import\u8bed\u53e5<\/p>\n<\/p>\n
import\u8bed\u53e5\u662fPython\u4e2d\u6700\u57fa\u672c\u7684\u6a21\u5757\u5bfc\u5165\u65b9\u5f0f\u3002\u5b83\u53ef\u4ee5\u5c06\u6574\u4e2a\u6a21\u5757\u5bfc\u5165\u5230\u5f53\u524d\u7684\u547d\u540d\u7a7a\u95f4\u4e2d\u3002\u4f7f\u7528import\u8bed\u53e5\u5bfc\u5165\u6a21\u5757\u7684\u597d\u5904\u662f\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u8f83\u9ad8\uff0c\u56e0\u4e3a\u5728\u4f7f\u7528\u6a21\u5757\u4e2d\u7684\u51fd\u6570\u6216\u53d8\u91cf\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u201c\u6a21\u5757\u540d.\u51fd\u6570\u540d\u201d\u7684\u5f62\u5f0f\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\uff1a<\/h3>\n<\/p>\n
import math<\/p>\n
print(math.pi)  # \u8f93\u51fa\uff1a3.141592653589793<\/p>\n
print(math.sqrt(16))  # \u8f93\u51fa\uff1a4.0<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u8fd9\u79cd\u65b9\u5f0f\u5bfc\u5165\u6a21\u5757\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u547d\u540d\u51b2\u7a81\uff0c\u56e0\u4e3a\u6240\u6709\u7684\u51fd\u6570\u548c\u53d8\u91cf\u90fd\u5728\u6a21\u5757\u7684\u547d\u540d\u7a7a\u95f4\u5185\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528from…import\u8bed\u53e5<\/p>\n<\/p>\n
from…import\u8bed\u53e5\u5141\u8bb8\u4f60\u4ece\u6a21\u5757\u4e2d\u5bfc\u5165\u7279\u5b9a\u7684\u51fd\u6570\u6216\u53d8\u91cf\uff0c\u800c\u4e0d\u662f\u6574\u4e2a\u6a21\u5757\u3002\u8fd9\u79cd\u65b9\u5f0f\u7684\u597d\u5904\u662f\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u5bfc\u5165\u7684\u51fd\u6570\u6216\u53d8\u91cf\uff0c\u65e0\u9700\u4f7f\u7528\u201c\u6a21\u5757\u540d.\u201d\u7684\u524d\u7f00\uff0c\u4f46\u53ef\u80fd\u4f1a\u5bfc\u81f4\u547d\u540d\u51b2\u7a81\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\uff1a<\/h3>\n<\/p>\n
from math import pi, sqrt<\/p>\n
print(pi)  # \u8f93\u51fa\uff1a3.141592653589793<\/p>\n
print(sqrt(16))  # \u8f93\u51fa\uff1a4.0<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u9700\u8981\u5bfc\u5165\u6a21\u5757\u4e2d\u7684\u6240\u6709\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528from…import *\u8bed\u53e5\uff0c\u4f46\u4e0d\u63a8\u8350\u8fd9\u79cd\u505a\u6cd5\uff0c\u56e0\u4e3a\u5b83\u53ef\u80fd\u5bfc\u81f4\u547d\u540d\u51b2\u7a81\uff0c\u5e76\u4e14\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u8f83\u5dee\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\uff1a<\/h3>\n<\/p>\n
from math import *<\/p>\n
print(pi)  # \u8f93\u51fa\uff1a3.141592653589793<\/p>\n
print(sqrt(16))  # \u8f93\u51fa\uff1a4.0<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528as\u5173\u952e\u5b57\u8fdb\u884c\u91cd\u547d\u540d<\/p>\n<\/p>\n
\u5728\u5bfc\u5165\u6a21\u5757\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528as\u5173\u952e\u5b57\u4e3a\u6a21\u5757\u6216\u51fd\u6570\/\u53d8\u91cf\u6307\u5b9a\u4e00\u4e2a\u522b\u540d\uff0c\u4ee5\u7b80\u5316\u4ee3\u7801\u4e66\u5199\u6216\u89e3\u51b3\u547d\u540d\u51b2\u7a81\u95ee\u9898\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\uff1a<\/h3>\n<\/p>\n
import numpy as np<\/p>\n
print(np.array([1, 2, 3]))  # \u8f93\u51fa\uff1a[1 2 3]<\/p>\n
from math import sqrt as square_root<\/p>\n
print(square_root(16))  # \u8f93\u51fa\uff1a4.0<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u5f0f\u5728\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u65f6\u5c24\u5176\u6709\u7528\uff0c\u56e0\u4e3a\u6709\u4e9b\u5e93\u7684\u540d\u5b57\u6bd4\u8f83\u957f\uff0c\u4f7f\u7528\u522b\u540d\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u7b80\u6d01\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757<\/p>\n<\/p>\n
\u9664\u4e86\u5bfc\u5165Python\u6807\u51c6\u5e93\u548c\u7b2c\u4e09\u65b9\u5e93\u7684\u6a21\u5757\u5916\uff0c\u8fd8\u53ef\u4ee5\u5bfc\u5165\u81ea\u5df1\u7f16\u5199\u7684\u6a21\u5757\u3002\u81ea\u5b9a\u4e49\u6a21\u5757\u901a\u5e38\u662f\u4e00\u4e2a\u5305\u542bPython\u4ee3\u7801\u7684\u6587\u4ef6\uff0c\u6587\u4ef6\u540d\u5373\u4e3a\u6a21\u5757\u540d\u3002\u4e3a\u4e86\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757\uff0c\u9700\u8981\u5c06\u6a21\u5757\u6587\u4ef6\u653e\u5728\u4e0e\u811a\u672c\u6587\u4ef6\u76f8\u540c\u7684\u76ee\u5f55\u4e0b\uff0c\u6216\u8005\u5c06\u6a21\u5757\u6587\u4ef6\u7684\u8def\u5f84\u6dfb\u52a0\u5230sys.path\u4e2d\u3002<\/p>\n<\/p>\n
\u793a\u4f8b\uff1a<\/h3>\n<\/p>\n
\u5047\u8bbe\u6709\u4e00\u4e2a\u540d\u4e3amymodule.py\u7684\u81ea\u5b9a\u4e49\u6a21\u5757\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
# mymodule.py<\/p>\n
def greet(name):<\/p>\n
    return f"Hello, {name}!"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e3b\u811a\u672c\u4e2d\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757\uff1a<\/p>\n<\/p>\n
import mymodule<\/p>\n
print(mymodule.greet("Alice"))  # \u8f93\u51fa\uff1aHello, Alice!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u81ea\u5b9a\u4e49\u6a21\u5757\u4e0d\u5728\u4e0e\u811a\u672c\u6587\u4ef6\u76f8\u540c\u7684\u76ee\u5f55\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528sys.path.append()\u65b9\u6cd5\u5c06\u6a21\u5757\u6587\u4ef6\u7684\u8def\u5f84\u6dfb\u52a0\u5230sys.path\u4e2d\uff1a<\/p>\n<\/p>\n
import sys<\/p>\n
sys.path.append('\/path\/to\/your\/module')<\/p>\n
import mymodule<\/p>\n
print(mymodule.greet("Alice"))  # \u8f93\u51fa\uff1aHello, Alice!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u6a21\u5757\u7684\u641c\u7d22\u8def\u5f84<\/p>\n<\/p>\n
\u5f53\u5bfc\u5165\u6a21\u5757\u65f6\uff0cPython\u4f1a\u6309\u7167\u4e00\u5b9a\u7684\u987a\u5e8f\u641c\u7d22\u6a21\u5757\u6587\u4ef6\u3002\u8fd9\u4e9b\u641c\u7d22\u8def\u5f84\u5b58\u50a8\u5728sys\u6a21\u5757\u7684path\u53d8\u91cf\u4e2d\u3002\u641c\u7d22\u8def\u5f84\u7684\u987a\u5e8f\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
    \n
  1. \u5f53\u524d\u76ee\u5f55<\/li>\n
  2. PYTHONPATH\u73af\u5883\u53d8\u91cf\u4e2d\u7684\u76ee\u5f55<\/li>\n
  3. \u6807\u51c6\u5e93\u76ee\u5f55<\/li>\n<\/ol>\n
    \u53ef\u4ee5\u901a\u8fc7sys.path\u67e5\u770b\u5f53\u524d\u7684\u641c\u7d22\u8def\u5f84\uff1a<\/p>\n<\/p>\n
    import sys<\/p>\n
    print(sys.path)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u5982\u679c\u9700\u8981\u81ea\u5b9a\u4e49\u641c\u7d22\u8def\u5f84\uff0c\u53ef\u4ee5\u4fee\u6539sys.path\u53d8\u91cf\u6216\u4f7f\u7528PYTHONPATH\u73af\u5883\u53d8\u91cf\u3002<\/p>\n<\/p>\n
    \u516d\u3001\u6a21\u5757\u7684\u91cd\u8f7d<\/p>\n<\/p>\n
    \u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u5bf9\u6a21\u5757\u8fdb\u884c\u4fee\u6539\u3002\u6b64\u65f6\uff0c\u5982\u679c\u5df2\u7ecf\u5bfc\u5165\u4e86\u6a21\u5757\uff0c\u53ef\u4ee5\u4f7f\u7528importlib.reload()\u51fd\u6570\u91cd\u65b0\u52a0\u8f7d\u6a21\u5757\uff0c\u800c\u4e0d\u5fc5\u91cd\u542f\u89e3\u91ca\u5668\u3002<\/p>\n<\/p>\n
    \u793a\u4f8b\uff1a<\/h3>\n<\/p>\n
    import mymodule<\/p>\n
    import importlib<\/p>\n
    \u4fee\u6539mymodule.py\u4e2d\u7684\u4ee3\u7801<\/strong><\/h2>\n
    importlib.reload(mymodule)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u79cd\u65b9\u5f0f\u5728\u4ea4\u4e92\u5f0f\u5f00\u53d1\u73af\u5883\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u56e0\u4e3a\u65e0\u9700\u91cd\u542f\u89e3\u91ca\u5668\u5373\u53ef\u5e94\u7528\u4ee3\u7801\u4fee\u6539\u3002<\/p>\n<\/p>\n
    \u4e03\u3001\u4e86\u89e3\u6a21\u5757\u7684\u5c5e\u6027<\/p>\n<\/p>\n
    \u6a21\u5757\u662fPython\u4e2d\u4e00\u79cd\u7279\u6b8a\u7684\u5bf9\u8c61\uff0c\u5177\u6709\u4e00\u4e9b\u6709\u7528\u7684\u5c5e\u6027\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4e86\u89e3\u6a21\u5757\u7684\u5185\u5bb9\u548c\u7ed3\u6784\u3002\u5e38\u7528\u7684\u6a21\u5757\u5c5e\u6027\u5305\u62ec\uff1a<\/p>\n<\/p>\n