python \u5305\u542b\u5b50\u76ee\u5f55\u4e2d\u7684\u6a21\u5757\u65b9\u6cd5\u6bd4\u8f83\u7b80\u5355\uff0c\u5173\u952e\u662f\u80fd\u591f\u5728sys.path\u91cc\u9762\u627e\u5230\u901a\u5411\u6a21\u5757\u6587\u4ef6\u7684\u8def\u5f84\u3002
\n\u4e0b\u9762\u5c06\u5177\u4f53\u4ecb\u7ecd\u51e0\u79cd\u5e38\u7528\u60c5\u51b5:
\n\uff081\uff09\u4e3b\u7a0b\u5e8f\u4e0e\u6a21\u5757\u7a0b\u5e8f\u5728\u540c\u4e00\u76ee\u5f55\u4e0b:
\n\u5982\u4e0b\u9762\u7a0b\u5e8f\u7ed3\u6784:
\n`– src
\n|– mod1.py
\n`– test1.py
\n\u82e5\u5728\u7a0b\u5e8ftest1.py\u4e2d\u5bfc\u5165\u6a21\u5757mod1, \u5219\u76f4\u63a5\u4f7f\u7528 import mod1\u6216from mod1 import *;<\/p>\n
\uff082\uff09\u4e3b\u7a0b\u5e8f\u6240\u5728\u76ee\u5f55\u662f\u6a21\u5757\u6240\u5728\u76ee\u5f55\u7684\u7236(\u6216\u7956\u8f88)\u76ee\u5f55
\n\u5982\u4e0b\u9762\u7a0b\u5e8f\u7ed3\u6784:
\n`– src
\n|– mod1.py
\n|– mod2
\n| `– mod2.py
\n`– test1.py
\n\u82e5\u5728\u7a0b\u5e8ftest1.py\u4e2d\u5bfc\u5165\u6a21\u5757mod2, \u9700\u8981\u5728mod2\u6587\u4ef6\u5939\u4e2d\u5efa\u7acb\u7a7a\u6587\u4ef6__init__.py\u6587\u4ef6(\u4e5f\u53ef\u4ee5\u5728\u8be5\u6587\u4ef6\u4e2d\u81ea\u5b9a\u4e49\u8f93\u51fa\u6a21\u5757\u63a5\u53e3); \u7136\u540e\u4f7f\u7528 from mod2.mod2 import * \u6216import mod2.mod2.<\/p>\n
\uff083\uff09\u4e3b\u7a0b\u5e8f\u5bfc\u5165\u4e0a\u5c42\u76ee\u5f55\u4e2d\u6a21\u5757\u6216\u5176\u4ed6\u76ee\u5f55(\u5e73\u7ea7)\u4e0b\u7684\u6a21\u5757
\n\u5982\u4e0b\u9762\u7a0b\u5e8f\u7ed3\u6784:
\n`– src
\n|– mod1.py
\n|– mod2
\n| `– mod2.py
\n|– sub
\n| `– test2.py
\n`– test1.py
\n\u82e5\u5728\u7a0b\u5e8ftest2.py\u4e2d\u5bfc\u5165\u6a21\u5757mod1\u548cmod2\u3002\u9996\u5148\u9700\u8981\u5728mod2\u4e0b\u5efa\u7acb__init__.py\u6587\u4ef6(\u540c(2))\uff0csrc\u4e0b\u4e0d\u5fc5\u5efa\u7acb\u8be5\u6587\u4ef6\u3002\u7136\u540e\u8c03\u7528\u65b9\u5f0f\u5982\u4e0b:
\n\u4e0b\u9762\u7a0b\u5e8f\u6267\u884c\u65b9\u5f0f\u5747\u5728\u7a0b\u5e8f\u6587\u4ef6\u6240\u5728\u76ee\u5f55\u4e0b\u6267\u884c\uff0c\u5982test2.py\u662f\u5728cd sub;\u4e4b\u540e\u6267\u884cpython test2.py
\n\u800ctest1.py\u662f\u5728cd src;\u4e4b\u540e\u6267\u884cpython test1.py; \u4e0d\u4fdd\u8bc1\u5728src\u76ee\u5f55\u4e0b\u6267\u884cpython sub\/test2.py\u6210\u529f\u3002
\nimport sys
\nsys.path.append(“..”)
\nimport mod1
\nimport mod2.mod2<\/p>\n
\uff084\uff09\u4ece(3)\u53ef\u4ee5\u770b\u51fa\uff0c\u5bfc\u5165\u6a21\u5757\u5173\u952e\u662f\u80fd\u591f\u6839\u636esys.path\u73af\u5883\u53d8\u91cf\u7684\u503c\uff0c\u627e\u5230\u5177\u4f53\u6a21\u5757\u7684\u8def\u5f84\u3002\u8fd9\u91cc\u4ec5\u4ecb\u7ecd\u4e0a\u9762\u4e09\u79cd\u7b80\u5355\u60c5\u51b5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"