{"id":930199,"date":"2024-12-26T17:11:07","date_gmt":"2024-12-26T09:11:07","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/930199.html"},"modified":"2024-12-26T17:11:09","modified_gmt":"2024-12-26T09:11:09","slug":"%e5%a6%82%e4%bd%95%e5%ad%98%e5%82%a8%e5%8f%98%e9%87%8f-python","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/930199.html","title":{"rendered":"\u5982\u4f55\u5b58\u50a8\u53d8\u91cf python"},"content":{"rendered":"

\"\u5982\u4f55\u5b58\u50a8\u53d8\u91cf<\/p>\n

\u5728Python\u4e2d\uff0c\u5b58\u50a8\u53d8\u91cf\u7684\u65b9\u5f0f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u6570\u636e\u7c7b\u578b\u5b9e\u73b0\uff0c\u5982\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4\u3001\u5b57\u5178\u3001\u96c6\u5408\u7b49\u3002\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784\u80fd\u591f\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3001\u589e\u5f3a\u7a0b\u5e8f\u7684\u7075\u6d3b\u6027\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u5b57\u5178\u6765\u5b58\u50a8\u53d8\u91cf\uff0c\u53ef\u4ee5\u901a\u8fc7\u952e\u503c\u5bf9\u7684\u5f62\u5f0f\u7ec4\u7ec7\u548c\u7ba1\u7406\u6570\u636e\u3002<\/strong><\/p>\n<\/p>\n

\u5b57\u5178\u662f\u4e00\u79cd\u53ef\u53d8\u7684\u3001\u65e0\u5e8f\u7684\u96c6\u5408\uff0c\u5b83\u4ee5\u952e\u503c\u5bf9\u7684\u5f62\u5f0f\u5b58\u50a8\u6570\u636e\u3002\u6bcf\u4e00\u4e2a\u952e\u503c\u5bf9\u4e2d\u7684\u952e\u662f\u552f\u4e00\u7684\uff0c\u4f7f\u7528\u5b57\u5178\u53ef\u4ee5\u65b9\u4fbf\u5730\u5bf9\u53d8\u91cf\u8fdb\u884c\u7ec4\u7ec7\u548c\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u9700\u8981\u5b58\u50a8\u4e00\u4e2a\u5b66\u751f\u7684\u4fe1\u606f\uff0c\u5305\u62ec\u59d3\u540d\u3001\u5e74\u9f84\u548c\u6210\u7ee9\uff0c\u53ef\u4ee5\u5c06\u5176\u5b58\u50a8\u5728\u4e00\u4e2a\u5b57\u5178\u4e2d\u3002\u8fd9\u6837\uff0c\u5f53\u6211\u4eec\u9700\u8981\u8bbf\u95ee\u6216\u4fee\u6539\u67d0\u4e2a\u4fe1\u606f\u65f6\uff0c\u53ea\u9700\u901a\u8fc7\u952e\u6765\u83b7\u53d6\u6216\u66f4\u65b0\u5176\u5bf9\u5e94\u7684\u503c\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u57fa\u672c\u6570\u636e\u7c7b\u578b<\/h3>\n<\/p>\n

Python\u63d0\u4f9b\u4e86\u591a\u79cd\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7528\u4e8e\u5b58\u50a8\u53d8\u91cf\uff0c\u5305\u62ec\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u4e32\u548c\u5e03\u5c14\u503c\u7b49\u3002<\/p>\n<\/p>\n

1\u3001\u6574\u6570\u548c\u6d6e\u70b9\u6570<\/h4>\n<\/p>\n

\u6574\u6570\u548c\u6d6e\u70b9\u6570\u662fPython\u4e2d\u6700\u5e38\u7528\u7684\u6570\u503c\u7c7b\u578b\u3002\u6574\u6570\u7528\u4e8e\u5b58\u50a8\u6ca1\u6709\u5c0f\u6570\u90e8\u5206\u7684\u6570\u5b57\uff0c\u800c\u6d6e\u70b9\u6570\u7528\u4e8e\u5b58\u50a8\u5e26\u5c0f\u6570\u7684\u6570\u5b57\u3002Python\u4e2d\u7684\u6574\u6570\u53ef\u4ee5\u662f\u4efb\u610f\u5927\u5c0f\uff0c\u800c\u6d6e\u70b9\u6570\u901a\u5e38\u662f\u53cc\u7cbe\u5ea664\u4f4d\u3002<\/p>\n<\/p>\n

a = 10  # \u6574\u6570<\/p>\n
b = 3.14  # \u6d6e\u70b9\u6570<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u5b57\u7b26\u4e32<\/h4>\n<\/p>\n
\u5b57\u7b26\u4e32\u7528\u4e8e\u5b58\u50a8\u6587\u672c\u6570\u636e\uff0c\u7531\u4e00\u5bf9\u5f15\u53f7\uff08\u5355\u5f15\u53f7\u6216\u53cc\u5f15\u53f7\uff09\u5305\u56f4\u7684\u5b57\u7b26\u5e8f\u5217\u3002<\/p>\n<\/p>\n
name = "Alice"<\/p>\n
greeting = 'Hello, World!'<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u5e03\u5c14\u503c<\/h4>\n<\/p>\n
\u5e03\u5c14\u503c\u8868\u793a\u771f\u6216\u5047\uff0c\u901a\u5e38\u7528\u4e8e\u6761\u4ef6\u5224\u65ad\u4e2d\u3002<\/p>\n<\/p>\n
is_active = True<\/p>\n
is_admin = False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u5217\u8868\u4e0e\u5143\u7ec4<\/h3>\n<\/p>\n
\u5217\u8868\u548c\u5143\u7ec4\u90fd\u662f\u6709\u5e8f\u7684\u96c6\u5408\uff0c\u4f46\u5217\u8868\u662f\u53ef\u53d8\u7684\uff0c\u800c\u5143\u7ec4\u662f\u4e0d\u53ef\u53d8\u7684\u3002<\/p>\n<\/p>\n
1\u3001\u5217\u8868<\/h4>\n<\/p>\n
\u5217\u8868\u662f\u4e00\u79cd\u52a8\u6001\u6570\u7ec4\uff0c\u53ef\u4ee5\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u7684\u5143\u7d20\u3002<\/p>\n<\/p>\n
fruits = ["apple", "banana", "cherry"]<\/p>\n
fruits.append("orange")  # \u6dfb\u52a0\u5143\u7d20<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u5143\u7ec4<\/h4>\n<\/p>\n
\u5143\u7ec4\u4e0e\u5217\u8868\u7c7b\u4f3c\uff0c\u4f46\u4e00\u65e6\u521b\u5efa\u5c31\u4e0d\u80fd\u4fee\u6539\u3002<\/p>\n<\/p>\n
coordinates = (10.0, 20.0)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u5b57\u5178<\/h3>\n<\/p>\n
\u5b57\u5178\u662f\u4e00\u79cd\u65e0\u5e8f\u7684\u53ef\u53d8\u96c6\u5408\uff0c\u901a\u8fc7\u952e\u503c\u5bf9\u5b58\u50a8\u6570\u636e\u3002<\/p>\n<\/p>\n
1\u3001\u521b\u5efa\u5b57\u5178<\/h4>\n<\/p>\n
\u5b57\u5178\u53ef\u4ee5\u901a\u8fc7\u5927\u62ec\u53f7{}\u548c\u5192\u53f7:\u6765\u521b\u5efa\u3002<\/p>\n<\/p>\n
student = {"name": "John", "age": 21, "grade": "A"}<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u8bbf\u95ee\u548c\u4fee\u6539\u5b57\u5178<\/h4>\n<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u952e\u6765\u8bbf\u95ee\u548c\u4fee\u6539\u5b57\u5178\u4e2d\u7684\u503c\u3002<\/p>\n<\/p>\n
print(student["name"])  # \u8f93\u51fa: John<\/p>\n
student["age"] = 22  # \u4fee\u6539\u5e74\u9f84<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u6dfb\u52a0\u548c\u5220\u9664\u952e\u503c\u5bf9<\/h4>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528update()\u65b9\u6cd5\u6216\u76f4\u63a5\u8d4b\u503c\u7684\u65b9\u5f0f\u6dfb\u52a0\u65b0\u7684\u952e\u503c\u5bf9\u3002<\/p>\n<\/p>\n
student["major"] = "Computer Science"<\/p>\n
del student["grade"]  # \u5220\u9664\u952e\u503c\u5bf9<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u96c6\u5408<\/h3>\n<\/p>\n
\u96c6\u5408\u662f\u65e0\u5e8f\u7684\u3001\u6ca1\u6709\u91cd\u590d\u5143\u7d20\u7684\u96c6\u5408\u3002<\/p>\n<\/p>\n
1\u3001\u521b\u5efa\u96c6\u5408<\/h4>\n<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u5927\u62ec\u53f7{}\u6216set()\u51fd\u6570\u521b\u5efa\u96c6\u5408\u3002<\/p>\n<\/p>\n
colors = {"red", "green", "blue"}<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u96c6\u5408\u64cd\u4f5c<\/h4>\n<\/p>\n
\u96c6\u5408\u652f\u6301\u6570\u5b66\u8fd0\u7b97\uff0c\u5982\u5e76\u96c6\u3001\u4ea4\u96c6\u3001\u5dee\u96c6\u3002<\/p>\n<\/p>\n
a = {1, 2, 3}<\/p>\n
b = {3, 4, 5}<\/p>\n
print(a | b)  # \u5e76\u96c6: {1, 2, 3, 4, 5}<\/p>\n
print(a & b)  # \u4ea4\u96c6: {3}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u53d8\u91cf\u7684\u4f5c\u7528\u57df<\/h3>\n<\/p>\n
1\u3001\u5c40\u90e8\u53d8\u91cf<\/h4>\n<\/p>\n
\u5c40\u90e8\u53d8\u91cf\u662f\u5728\u51fd\u6570\u5185\u90e8\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u53ea\u80fd\u5728\u51fd\u6570\u5185\u90e8\u4f7f\u7528\u3002<\/p>\n<\/p>\n
def func():<\/p>\n
    x = 10  # \u5c40\u90e8\u53d8\u91cf<\/p>\n
    print(x)<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u5168\u5c40\u53d8\u91cf<\/h4>\n<\/p>\n
\u5168\u5c40\u53d8\u91cf\u662f\u5728\u51fd\u6570\u5916\u90e8\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u53ef\u4ee5\u5728\u6574\u4e2a\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u3002<\/p>\n<\/p>\n
y = 20  # \u5168\u5c40\u53d8\u91cf<\/p>\n
def func():<\/p>\n
    global y<\/p>\n
    y = 30<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784\u6765\u5b58\u50a8\u53d8\u91cf\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002\u6574\u6570\u3001\u6d6e\u70b9\u6570\u3001\u5b57\u7b26\u4e32\u548c\u5e03\u5c14\u503c\u662f\u57fa\u672c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u9002\u5408\u5b58\u50a8\u7b80\u5355\u7684\u6570\u636e\u3002\u5217\u8868\u548c\u5143\u7ec4\u9002\u5408\u5b58\u50a8\u6709\u5e8f\u7684\u6570\u636e\u96c6\u5408\uff0c\u800c\u5b57\u5178\u9002\u5408\u901a\u8fc7\u952e\u503c\u5bf9\u7ec4\u7ec7\u548c\u7ba1\u7406\u6570\u636e\u3002\u96c6\u5408\u7528\u4e8e\u5b58\u50a8\u65e0\u5e8f\u4e14\u4e0d\u91cd\u590d\u7684\u5143\u7d20\u3002\u6b64\u5916\uff0c\u7406\u89e3\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u6709\u52a9\u4e8e\u5408\u7406\u5730\u7ec4\u7ec7\u4ee3\u7801\u7ed3\u6784\u3002\u5728\u7f16\u5199\u7a0b\u5e8f\u65f6\uff0c\u5e94\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7c7b\u578b\u548c\u7ed3\u6784\uff0c\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6027\u80fd\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u9009\u62e9\u9002\u5408\u7684\u5b58\u50a8\u65b9\u5f0f\u6765\u4fdd\u5b58\u53d8\u91cf\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u5b58\u50a8\u53d8\u91cf\u7684\u65b9\u5f0f\u6709\u5f88\u591a\u79cd\uff0c\u4e3b\u8981\u53d6\u51b3\u4e8e\u6570\u636e\u7684\u7c7b\u578b\u548c\u4f7f\u7528\u573a\u666f\u3002\u5bf9\u4e8e\u7b80\u5355\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5982\u6574\u6570\u3001\u5b57\u7b26\u4e32\u3001\u5217\u8868\u7b49\u76f4\u63a5\u8d4b\u503c\u3002\u5bf9\u4e8e\u9700\u8981\u6301\u4e45\u5316\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u6587\u4ef6\uff08\u5982\u6587\u672c\u6587\u4ef6\u3001JSON\u3001CSV\uff09\u6216\u6570\u636e\u5e93\uff08\u5982SQLite\u3001MySQL\uff09\u3002\u9009\u62e9\u5408\u9002\u7684\u5b58\u50a8\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u7684\u5b89\u5168\u6027\u548c\u8bbf\u95ee\u6548\u7387\u3002<\/p>\n
\u5728Python\u4e2d\u5982\u4f55\u4f7f\u7528\u5b57\u5178\u6765\u5b58\u50a8\u591a\u4e2a\u53d8\u91cf\uff1f<\/strong>
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\u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u53d8\u91cf\u7684\u4e34\u65f6\u5b58\u50a8\uff1f<\/strong>
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