{"id":1099752,"date":"2025-01-08T15:33:45","date_gmt":"2025-01-08T07:33:45","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1099752.html"},"modified":"2025-01-08T15:33:48","modified_gmt":"2025-01-08T07:33:48","slug":"python%e5%a6%82%e4%bd%95%e8%af%bb%e5%8f%96%e4%b8%80%e8%a1%8c%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1099752.html","title":{"rendered":"python\u5982\u4f55\u8bfb\u53d6\u4e00\u884c\u6570"},"content":{"rendered":"

\"python\u5982\u4f55\u8bfb\u53d6\u4e00\u884c\u6570\"<\/p>\n

Python \u8bfb\u53d6\u4e00\u884c\u6570\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528 input() \u51fd\u6570\u3001\u8bfb\u53d6\u6587\u4ef6\u3001\u4f7f\u7528 sys.stdin \u7b49\u3002\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 input() \u51fd\u6570\u8bfb\u53d6\u7528\u6237\u8f93\u5165\uff0c\u4f7f\u7528 open() \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e\u3002<\/strong> \u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n<\/p>\n

\u4f7f\u7528 input() \u51fd\u6570\u8bfb\u53d6\u7528\u6237\u8f93\u5165<\/strong><\/p>\n<\/p>\n

Python \u7684 input() \u51fd\u6570\u53ef\u4ee5\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u7684\u4e00\u884c\u6570\u636e\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n

user_input = input("\u8bf7\u8f93\u5165\u4e00\u884c\u6570: ")<\/p>\n
print("\u4f60\u8f93\u5165\u7684\u662f: ", user_input)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528 open() \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e<\/strong><\/p>\n<\/p>\n
\u5982\u679c\u9700\u8981\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u4e00\u884c\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528 open() \u51fd\u6570\u6253\u5f00\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528 readline() \u65b9\u6cd5\u8bfb\u53d6\u4e00\u884c\u5185\u5bb9\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
with open('filename.txt', 'r') as file:<\/p>\n
    line = file.readline()<\/p>\n
    print("\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u5185\u5bb9\u662f: ", line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528 sys.stdin \u8bfb\u53d6\u6807\u51c6\u8f93\u5165<\/strong><\/p>\n<\/p>\n
\u9664\u4e86 input() \u51fd\u6570\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 sys.stdin \u8bfb\u53d6\u6807\u51c6\u8f93\u5165\uff0c\u8fd9\u5728\u5904\u7406\u91cd\u5b9a\u5411\u8f93\u5165\u65f6\u975e\u5e38\u6709\u7528\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
import sys<\/p>\n
for line in sys.stdin:<\/p>\n
    print("\u6807\u51c6\u8f93\u5165\u7684\u4e00\u884c\u5185\u5bb9\u662f: ", line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8be6\u7ec6\u63cf\u8ff0\uff1a\u4f7f\u7528 open() \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e<\/strong><\/p>\n<\/p>\n
\u4f7f\u7528 open() \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u6587\u4ef6\u7684\u8def\u5f84\u548c\u6587\u4ef6\u7684\u6253\u5f00\u6a21\u5f0f\u3002\u8def\u5f84\u53ef\u4ee5\u662f\u76f8\u5bf9\u8def\u5f84\uff0c\u4e5f\u53ef\u4ee5\u662f\u7edd\u5bf9\u8def\u5f84\uff1b\u6253\u5f00\u6a21\u5f0f\u53ef\u4ee5\u662f\u53ea\u8bfb\u6a21\u5f0f\uff08'r'\uff09\u3001\u5199\u6a21\u5f0f\uff08'w'\uff09\u3001\u8ffd\u52a0\u6a21\u5f0f\uff08'a'\uff09\u7b49\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 open() \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e\u3002<\/p>\n<\/p>\n
\u9996\u5148\uff0c\u4f7f\u7528 open() \u51fd\u6570\u6253\u5f00\u6587\u4ef6\u3002open() \u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u6587\u4ef6\u8def\u5f84\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u6253\u5f00\u6a21\u5f0f\u3002\u8fd9\u91cc\u6211\u4eec\u4f7f\u7528\u53ea\u8bfb\u6a21\u5f0f\uff08'r'\uff09\u6253\u5f00\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
file = open('filename.txt', 'r')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7136\u540e\uff0c\u4f7f\u7528 readline() \u65b9\u6cd5\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e\u3002readline() \u65b9\u6cd5\u4f1a\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u4e00\u884c\u5185\u5bb9\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u5982\u679c\u6587\u4ef6\u4e2d\u6ca1\u6709\u66f4\u591a\u5185\u5bb9\uff0creadline() \u65b9\u6cd5\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\uff1a<\/p>\n<\/p>\n
line = file.readline()<\/p>\n
print("\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u5185\u5bb9\u662f: ", line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6700\u540e\uff0c\u4f7f\u7528 close() \u65b9\u6cd5\u5173\u95ed\u6587\u4ef6\u3002\u5173\u95ed\u6587\u4ef6\u662f\u4e00\u4e2a\u826f\u597d\u7684\u7f16\u7a0b\u4e60\u60ef\uff0c\u53ef\u4ee5\u91ca\u653e\u7cfb\u7edf\u8d44\u6e90\uff1a<\/p>\n<\/p>\n
file.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b8c\u6574\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
file = open('filename.txt', 'r')<\/p>\n
line = file.readline()<\/p>\n
print("\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u5185\u5bb9\u662f: ", line)<\/p>\n
file.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528 with \u8bed\u53e5\u7b80\u5316\u6587\u4ef6\u64cd\u4f5c<\/strong><\/p>\n<\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u867d\u7136\u53ef\u4ee5\u6b63\u5e38\u5de5\u4f5c\uff0c\u4f46\u4f7f\u7528 with \u8bed\u53e5\u53ef\u4ee5\u7b80\u5316\u6587\u4ef6\u64cd\u4f5c\uff0c\u5e76\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\u3002with \u8bed\u53e5\u662f Python \u4e2d\u7684\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff0c\u53ef\u4ee5\u786e\u4fdd\u5728\u4ee3\u7801\u5757\u6267\u884c\u5b8c\u6bd5\u540e\u81ea\u52a8\u5173\u95ed\u6587\u4ef6\u3002\u4f7f\u7528 with \u8bed\u53e5\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
with open('filename.txt', 'r') as file:<\/p>\n
    line = file.readline()<\/p>\n
    print("\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u5185\u5bb9\u662f: ", line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u6837\uff0cwith \u8bed\u53e5\u4f1a\u81ea\u52a8\u5904\u7406\u6587\u4ef6\u7684\u5173\u95ed\u64cd\u4f5c\uff0c\u4e0d\u9700\u8981\u663e\u5f0f\u8c03\u7528 close() \u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 sys.stdin \u8bfb\u53d6\u6807\u51c6\u8f93\u5165<\/strong><\/p>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u4ece\u6807\u51c6\u8f93\u5165\u8bfb\u53d6\u6570\u636e\uff0c\u4f8b\u5982\u5728\u5904\u7406\u91cd\u5b9a\u5411\u8f93\u5165\u65f6\u3002\u53ef\u4ee5\u4f7f\u7528 sys.stdin \u8bfb\u53d6\u6807\u51c6\u8f93\u5165\u4e2d\u7684\u4e00\u884c\u6570\u636e\u3002sys.stdin \u662f\u4e00\u4e2a\u6587\u4ef6\u5bf9\u8c61\uff0c\u53ef\u4ee5\u50cf\u8bfb\u53d6\u6587\u4ef6\u4e00\u6837\u8bfb\u53d6\u6807\u51c6\u8f93\u5165\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 sys.stdin \u8bfb\u53d6\u6807\u51c6\u8f93\u5165\u7684\u4e00\u884c\u6570\u636e\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
import sys<\/p>\n
for line in sys.stdin:<\/p>\n
    print("\u6807\u51c6\u8f93\u5165\u7684\u4e00\u884c\u5185\u5bb9\u662f: ", line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5176\u4ed6\u8bfb\u53d6\u6587\u4ef6\u7684\u65b9\u6cd5<\/strong><\/p>\n<\/p>\n
\u9664\u4e86 readline() \u65b9\u6cd5\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528 read() \u65b9\u6cd5\u548c readlines() \u65b9\u6cd5\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u3002<\/p>\n<\/p>\n
\u4f7f\u7528 read() \u65b9\u6cd5\u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6<\/strong><\/p>\n<\/p>\n
read() \u65b9\u6cd5\u53ef\u4ee5\u8bfb\u53d6\u6574\u4e2a\u6587\u4ef6\u7684\u5185\u5bb9\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
with open('filename.txt', 'r') as file:<\/p>\n
    content = file.read()<\/p>\n
    print("\u6587\u4ef6\u7684\u5168\u90e8\u5185\u5bb9\u662f: ", content)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528 readlines() \u65b9\u6cd5\u8bfb\u53d6\u6587\u4ef6\u7684\u6bcf\u4e00\u884c<\/strong><\/p>\n<\/p>\n
readlines() \u65b9\u6cd5\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u7684\u6bcf\u4e00\u884c\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728\u4e00\u4e2a\u5217\u8868\u4e2d\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n
with open('filename.txt', 'r') as file:<\/p>\n
    lines = file.readlines()<\/p>\n
    for line in lines:<\/p>\n
        print("\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u5185\u5bb9\u662f: ", line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u603b\u7ed3<\/strong><\/p>\n<\/p>\n
Python \u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u8bfb\u53d6\u4e00\u884c\u6570\u636e\uff0c\u5305\u62ec\u4f7f\u7528 input() \u51fd\u6570\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u3001\u4f7f\u7528 open() \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e\u3001\u4f7f\u7528 sys.stdin \u8bfb\u53d6\u6807\u51c6\u8f93\u5165\u7b49\u3002\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u3002\u638c\u63e1\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u5904\u7406\u5404\u79cd\u8f93\u5165\u6570\u636e\uff0c\u63d0\u9ad8\u7f16\u7a0b\u6548\u7387\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u6570\u636e\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684open()<\/code>\u51fd\u6570\u6253\u5f00\u6587\u4ef6\u5e76\u4f7f\u7528readline()<\/code>\u65b9\u6cd5\u8bfb\u53d6\u4e00\u884c\u6570\u636e\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a  <\/p>\n
with open('\u6587\u4ef6\u540d.txt', 'r') as file:\n    line = file.readline()\n    print(line)\n<\/code><\/pre>\n
\u8fd9\u4e2a\u4ee3\u7801\u7247\u6bb5\u4f1a\u6253\u5f00\u6307\u5b9a\u7684\u6587\u4ef6\uff0c\u8bfb\u53d6\u7b2c\u4e00\u884c\u5185\u5bb9\u5e76\u6253\u5370\u51fa\u6765\u3002\u4f7f\u7528with<\/code>\u8bed\u53e5\u80fd\u591f\u786e\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u540e\u88ab\u6b63\u786e\u5173\u95ed\u3002<\/p>\n
\u6709\u4ec0\u4e48\u65b9\u6cd5\u53ef\u4ee5\u8bfb\u53d6\u6587\u672c\u6587\u4ef6\u7684\u7279\u5b9a\u884c\uff1f<\/strong>
\u5982\u679c\u4f60\u60f3\u8bfb\u53d6\u6587\u672c\u6587\u4ef6\u7684\u7279\u5b9a\u884c\uff0c\u53ef\u4ee5\u4f7f\u7528readlines()<\/code>\u65b9\u6cd5\u5c06\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u884c\u5b58\u50a8\u5728\u4e00\u4e2a\u5217\u8868\u4e2d\uff0c\u7136\u540e\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u7279\u5b9a\u884c\u3002\u4f8b\u5982\uff1a  <\/p>\n
with open('\u6587\u4ef6\u540d.txt', 'r') as file:\n    lines = file.readlines()\n    specific_line = lines[2]  # \u8bfb\u53d6\u7b2c\u4e09\u884c\n    print(specific_line)\n<\/code><\/pre>\n
\u8bb0\u5f97Python\u4e2d\u7684\u7d22\u5f15\u662f\u4ece0\u5f00\u59cb\u7684\uff0c\u56e0\u6b64lines[2]<\/code>\u5b9e\u9645\u4e0a\u662f\u7b2c\u4e09\u884c\u5185\u5bb9\u3002<\/p>\n
\u5982\u4f55\u5728\u8bfb\u53d6\u6587\u4ef6\u65f6\u5904\u7406\u7a7a\u884c\u6216\u5f02\u5e38\uff1f<\/strong>
\u5728\u8bfb\u53d6\u6587\u4ef6\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u7a7a\u884c\u6216\u6587\u4ef6\u4e0d\u5b58\u5728\u7684\u60c5\u51b5\u3002\u4e3a\u4e86\u5b89\u5168\u8d77\u89c1\uff0c\u53ef\u4ee5\u4f7f\u7528\u5f02\u5e38\u5904\u7406\u6765\u5904\u7406\u8fd9\u4e9b\u95ee\u9898\u3002\u793a\u4f8b\u5982\u4e0b\uff1a  <\/p>\n
try:\n    with open('\u6587\u4ef6\u540d.txt', 'r') as file:\n        line = file.readline()\n        if line.strip():  # \u68c0\u67e5\u662f\u5426\u662f\u7a7a\u884c\n            print(line)\n        else:\n            print("\u8fd9\u4e00\u884c\u662f\u7a7a\u7684\u3002")\nexcept FileNotFoundError:\n    print("\u6587\u4ef6\u672a\u627e\u5230\uff0c\u8bf7\u68c0\u67e5\u6587\u4ef6\u540d\u6216\u8def\u5f84\u3002")\n<\/code><\/pre>\n
\u8fd9\u79cd\u65b9\u6cd5\u80fd\u591f\u6709\u6548\u907f\u514d\u7a0b\u5e8f\u56e0\u5f02\u5e38\u800c\u5d29\u6e83\uff0c\u5e76\u63d0\u4f9b\u7528\u6237\u53cb\u597d\u7684\u53cd\u9988\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python \u8bfb\u53d6\u4e00\u884c\u6570\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528 input() \u51fd\u6570\u3001\u8bfb\u53d6\u6587\u4ef6\u3001\u4f7f\u7528 sys.stdin \u7b49\u3002 […]","protected":false},"author":3,"featured_media":1099760,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1099752"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1099752"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1099752\/revisions"}],"predecessor-version":[{"id":1099765,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1099752\/revisions\/1099765"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1099760"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1099752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1099752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1099752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}