{"id":1155332,"date":"2025-01-13T18:02:09","date_gmt":"2025-01-13T10:02:09","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1155332.html"},"modified":"2025-01-13T18:02:12","modified_gmt":"2025-01-13T10:02:12","slug":"python%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e8%be%93%e5%87%ba%e5%a1%ab%e5%85%85","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1155332.html","title":{"rendered":"python\u5982\u4f55\u5b9e\u73b0\u8f93\u51fa\u586b\u5145"},"content":{"rendered":"

\"python\u5982\u4f55\u5b9e\u73b0\u8f93\u51fa\u586b\u5145\"<\/p>\n

\u5728Python\u4e2d\u5b9e\u73b0\u8f93\u51fa\u586b\u5145\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a\u5b57\u7b26\u4e32\u7684ljust()<\/code>\u3001rjust()<\/code>\u548ccenter()<\/code>\u65b9\u6cd5\uff0cformat()<\/code>\u65b9\u6cd5\uff0cf-string\uff08\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u5b57\u9762\u503c\uff09\u65b9\u6cd5\u3002<\/strong> \u5176\u4e2d\uff0cformat()<\/code>\u65b9\u6cd5\u662f\u4e00\u79cd\u7075\u6d3b\u4e14\u5f3a\u5927\u7684\u65b9\u5f0f\uff0c\u5b83\u5141\u8bb8\u4f60\u5b9a\u4e49\u66f4\u590d\u6742\u7684\u586b\u5145\u548c\u683c\u5f0f\u89c4\u5219\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

text = "Hello"<\/p>\n
filled_text = "{:<10}".format(text)<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'Hello     '<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c{:<10}<\/code> \u8868\u793a\u5de6\u5bf9\u9f50\u5e76\u586b\u5145\u81f310\u4e2a\u5b57\u7b26\u5bbd\u3002\u5982\u679c\u9700\u8981\u66f4\u590d\u6742\u7684\u586b\u5145\u65b9\u6848\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528f-string\u548c\u5176\u4ed6\u65b9\u6cd5\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u63cf\u8ff0\u8fd9\u4e9b\u65b9\u6cd5\u4ee5\u53ca\u5b83\u4eec\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n
\u4e00\u3001ljust()\u3001rjust()\u3001center() \u65b9\u6cd5<\/h3>\n<\/p>\n
1. ljust()<\/h4>\n<\/p>\n
ljust()<\/code>\u65b9\u6cd5\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u5de6\u5bf9\u9f50\uff0c\u5e76\u4f7f\u7528\u6307\u5b9a\u7684\u5b57\u7b26\u586b\u5145\u53f3\u8fb9\u7684\u7a7a\u767d\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
text = "Hello"<\/p>\n
filled_text = text.ljust(10, '-')<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'Hello-----'<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. rjust()<\/h4>\n<\/p>\n
rjust()<\/code>\u65b9\u6cd5\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u53f3\u5bf9\u9f50\uff0c\u5e76\u4f7f\u7528\u6307\u5b9a\u7684\u5b57\u7b26\u586b\u5145\u5de6\u8fb9\u7684\u7a7a\u767d\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
text = "Hello"<\/p>\n
filled_text = text.rjust(10, '-')<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'-----Hello'<\/p>\n
<\/code><\/pre>\n<\/p>\n
3. center()<\/h4>\n<\/p>\n
center()<\/code>\u65b9\u6cd5\u7528\u4e8e\u5c06\u5b57\u7b26\u4e32\u5c45\u4e2d\u5bf9\u9f50\uff0c\u5e76\u4f7f\u7528\u6307\u5b9a\u7684\u5b57\u7b26\u586b\u5145\u4e24\u8fb9\u7684\u7a7a\u767d\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n
text = "Hello"<\/p>\n
filled_text = text.center(10, '-')<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'--Hello---'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001format() \u65b9\u6cd5<\/h3>\n<\/p>\n
format()<\/code>\u65b9\u6cd5\u7528\u4e8e\u5728\u5b57\u7b26\u4e32\u4e2d\u63d2\u5165\u53d8\u91cf\uff0c\u5e76\u4e14\u53ef\u4ee5\u6307\u5b9a\u586b\u5145\u3001\u5bf9\u9f50\u548c\u5bbd\u5ea6\u7b49\u683c\u5f0f\u3002<\/p>\n<\/p>\n
text = "Hello"<\/p>\n
filled_text = "{:<10}".format(text)<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'Hello     '<\/p>\n
\u53f3\u5bf9\u9f50<\/strong><\/h2>\n
filled_text = "{:>10}".format(text)<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'     Hello'<\/p>\n
\u5c45\u4e2d\u5bf9\u9f50<\/strong><\/h2>\n
filled_text = "{:^10}".format(text)<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'  Hello   '<\/p>\n
\u4f7f\u7528\u7279\u5b9a\u5b57\u7b26\u586b\u5145<\/strong><\/h2>\n
filled_text = "{:-<10}".format(text)<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'Hello-----'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001f-string\uff08\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u5b57\u9762\u503c\uff09<\/h3>\n<\/p>\n
f-string\u662fPython 3.6\u5f15\u5165\u7684\u4e00\u79cd\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\uff0c\u5b83\u5141\u8bb8\u5728\u5b57\u7b26\u4e32\u4e2d\u5d4c\u5165\u8868\u8fbe\u5f0f\uff0c\u5e76\u4e14\u652f\u6301\u586b\u5145\u3001\u5bf9\u9f50\u548c\u5bbd\u5ea6\u7b49\u683c\u5f0f\u3002<\/p>\n<\/p>\n
text = "Hello"<\/p>\n
filled_text = f"{text:<10}"<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'Hello     '<\/p>\n
\u53f3\u5bf9\u9f50<\/strong><\/h2>\n
filled_text = f"{text:>10}"<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'     Hello'<\/p>\n
\u5c45\u4e2d\u5bf9\u9f50<\/strong><\/h2>\n
filled_text = f"{text:^10}"<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'  Hello   '<\/p>\n
\u4f7f\u7528\u7279\u5b9a\u5b57\u7b26\u586b\u5145<\/strong><\/h2>\n
filled_text = f"{text:-<10}"<\/p>\n
print(filled_text)  # \u8f93\u51fa\uff1a'Hello-----'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u5176\u4ed6\u65b9\u6cd5<\/h3>\n<\/p>\n
\u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u65b9\u5f0f\u53ef\u4ee5\u5b9e\u73b0\u8f93\u51fa\u586b\u5145\uff0c\u5982\u4f7f\u7528zfill()<\/code>\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u4e3b\u8981\u7528\u4e8e\u586b\u5145\u6570\u5b57\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n
1. zfill()<\/h4>\n<\/p>\n
zfill()<\/code>\u65b9\u6cd5\u7528\u4e8e\u5728\u5b57\u7b26\u4e32\u524d\u9762\u586b\u5145\u96f6\uff0c\u4ee5\u8fbe\u5230\u6307\u5b9a\u7684\u5bbd\u5ea6\u3002<\/p>\n<\/p>\n
number = "42"<\/p>\n
filled_number = number.zfill(5)<\/p>\n
print(filled_number)  # \u8f93\u51fa\uff1a'00042'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b9e\u8df5\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
1. \u8868\u683c\u5bf9\u9f50<\/h4>\n<\/p>\n
\u5728\u5904\u7406\u6587\u672c\u8868\u683c\u65f6\uff0c\u7ecf\u5e38\u9700\u8981\u5c06\u6bcf\u4e00\u5217\u7684\u5185\u5bb9\u5bf9\u9f50\uff0c\u4ee5\u4fbf\u8868\u683c\u66f4\u6613\u4e8e\u9605\u8bfb\u3002\u53ef\u4ee5\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
data = [<\/p>\n
    {"name": "Alice", "age": 25, "city": "New York"},<\/p>\n
    {"name": "Bob", "age": 30, "city": "Los Angeles"},<\/p>\n
    {"name": "Charlie", "age": 35, "city": "Chicago"},<\/p>\n
]<\/p>\n
print("{:<10} {:<5} {:<15}".format("Name", "Age", "City"))<\/p>\n
for row in data:<\/p>\n
    print("{:<10} {:<5} {:<15}".format(row["name"], row["age"], row["city"]))<\/p>\n
<\/code><\/pre>\n<\/p>\n
2. \u6570\u5b57\u586b\u5145<\/h4>\n<\/p>\n
\u5728\u5904\u7406\u6570\u5b57\u65f6\uff0c\u6709\u65f6\u9700\u8981\u5c06\u6570\u5b57\u586b\u5145\u4e3a\u56fa\u5b9a\u5bbd\u5ea6\uff0c\u4ee5\u4fbf\u4e8e\u6392\u5e8f\u6216\u5bf9\u9f50\u663e\u793a\u3002<\/p>\n<\/p>\n
numbers = [1, 12, 123, 1234]<\/p>\n
for number in numbers:<\/p>\n
    print("{:04}".format(number))<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u603b\u7ed3<\/h3>\n<\/p>\n
Python\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\u8f93\u51fa\u586b\u5145\uff0c\u5305\u62ecljust()<\/code>\u3001rjust()<\/code>\u3001center()<\/code>\u3001format()<\/code>\u3001f-string\u548czfill()<\/code>\u7b49\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u5e94\u7528\u573a\u666f\u3002<\/strong> \u901a\u8fc7\u7075\u6d3b\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6587\u672c\u5bf9\u9f50\u3001\u6570\u5b57\u586b\u5145\u7b49\u9700\u6c42\uff0c\u4f7f\u8f93\u51fa\u66f4\u52a0\u7f8e\u89c2\u548c\u89c4\u8303\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u5b57\u7b26\u4e32\u7684\u586b\u5145\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528str.ljust()<\/code>, str.rjust()<\/code>, \u548c str.center()<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0\u5b57\u7b26\u4e32\u7684\u586b\u5145\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5141\u8bb8\u60a8\u6307\u5b9a\u586b\u5145\u5b57\u7b26\u548c\u586b\u5145\u7684\u603b\u957f\u5ea6\u3002\u4f8b\u5982\uff0cmy_string.ljust(10, ' ')<\/code>\u5c06\u5b57\u7b26\u4e32my_string<\/code>\u5de6\u5bf9\u9f50\u5e76\u5728\u53f3\u4fa7\u586b\u5145\u7a7a\u683c\uff0c\u76f4\u5230\u603b\u957f\u5ea6\u8fbe\u523010\u4e2a\u5b57\u7b26\u3002<\/p>\n
Python\u4e2d\u6709\u54ea\u4e9b\u5e38\u7528\u7684\u586b\u5145\u5b57\u7b26\uff1f<\/strong>
\u5e38\u7528\u7684\u586b\u5145\u5b57\u7b26\u5305\u62ec\u7a7a\u683c\u3001\u96f6\uff08'0'\uff09\u3001\u661f\u53f7\uff08'*'\uff09\u7b49\u3002\u60a8\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u586b\u5145\u5b57\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u60f3\u8981\u4ee5\u96f6\u586b\u5145\u6570\u5b57\uff0c\u53ef\u4ee5\u4f7f\u7528str.zfill(width)<\/code>\uff0c\u5b83\u4f1a\u5728\u6570\u5b57\u524d\u9762\u6dfb\u52a0\u96f6\uff0c\u4f7f\u5176\u8fbe\u5230\u6307\u5b9a\u7684\u5bbd\u5ea6\u3002<\/p>\n
\u5982\u4f55\u5904\u7406\u6570\u5b57\u586b\u5145\u4ee5\u786e\u4fdd\u8f93\u51fa\u683c\u5f0f\u4e00\u81f4\uff1f<\/strong>
\u5bf9\u4e8e\u6570\u5b57\u586b\u5145\uff0c\u53ef\u4ee5\u4f7f\u7528\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff08f-string\uff09\u6216format()<\/code>\u65b9\u6cd5\u3002\u901a\u8fc7\u5728\u683c\u5f0f\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u5bbd\u5ea6\u548c\u586b\u5145\u5b57\u7b26\uff0c\u53ef\u4ee5\u5b9e\u73b0\u4e00\u81f4\u7684\u8f93\u51fa\u683c\u5f0f\u3002\u4f8b\u5982\uff0c\u4f7f\u7528f"{number:05}"<\/code>\u53ef\u4ee5\u5c06\u6570\u5b57\u586b\u5145\u4e3a5\u4f4d\uff0c\u4e0d\u8db3\u7684\u90e8\u5206\u7528\u96f6\u586b\u5145\u3002\u8fd9\u79cd\u65b9\u5f0f\u5728\u751f\u6210\u62a5\u544a\u6216\u8f93\u51fa\u5bf9\u9f50\u7684\u8868\u683c\u65f6\u5c24\u5176\u6709\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5b9e\u73b0\u8f93\u51fa\u586b\u5145\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a\u5b57\u7b26\u4e32\u7684ljust()\u3001rjust()\u548ccenter()\u65b9\u6cd5 […]","protected":false},"author":3,"featured_media":1155335,"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\/1155332"}],"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=1155332"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1155332\/revisions"}],"predecessor-version":[{"id":1155336,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1155332\/revisions\/1155336"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1155335"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1155332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1155332"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1155332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}