{"id":1143196,"date":"2025-01-08T22:47:57","date_gmt":"2025-01-08T14:47:57","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1143196.html"},"modified":"2025-01-08T22:47:59","modified_gmt":"2025-01-08T14:47:59","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e6%af%94%e8%be%83%e4%b8%a4%e4%b8%aa%e5%ad%97%e7%ac%a6%e7%9a%84%e5%a4%a7%e5%b0%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1143196.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u7684\u5927\u5c0f"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u7684\u5927\u5c0f\"<\/p>\n

\u5728Python\u4e2d\uff0c\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u7684\u5927\u5c0f\u53ef\u4ee5\u901a\u8fc7\u5185\u7f6e\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\u6765\u5b9e\u73b0\u3002\u6838\u5fc3\u89c2\u70b9\u5305\u62ec\uff1a\u5b57\u7b26\u7684ASCII\u503c\u3001ord()\u51fd\u6570\u3001\u76f4\u63a5\u6bd4\u8f83\u8fd0\u7b97\u7b26\u3001\u5b57\u7b26\u4e32\u6392\u5e8f\u3001Unicode\u5b57\u7b26\u3002<\/strong> \u5176\u4e2d\uff0c\u5b57\u7b26\u7684ASCII\u503c<\/strong>\u662f\u6700\u5e38\u7528\u7684\u6bd4\u8f83\u65b9\u6cd5\uff0cPython\u4e2d\u7684\u5b57\u7b26\u6bd4\u8f83\u5b9e\u9645\u4e0a\u662f\u57fa\u4e8e\u5b57\u7b26\u7684ASCII\u503c\u8fdb\u884c\u7684\u3002\u6bcf\u4e2a\u5b57\u7b26\u5728\u8ba1\u7b97\u673a\u5185\u90e8\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684ASCII\u7801\u503c\uff0c\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u5b9e\u9645\u4e0a\u662f\u6bd4\u8f83\u5b83\u4eec\u7684ASCII\u7801\u503c\u3002<\/p>\n<\/p>\n

\u4f8b\u5982\uff0c\u5b57\u7b26'A'\u7684ASCII\u503c\u662f65\uff0c\u800c\u5b57\u7b26'B'\u7684ASCII\u503c\u662f66\uff0c\u6240\u4ee5'A' < 'B'\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Python\u7684\u5185\u7f6e\u51fd\u6570ord()<\/code>\u6765\u83b7\u53d6\u5b57\u7b26\u7684ASCII\u503c\uff0c\u5e76\u8fdb\u884c\u6bd4\u8f83\u3002\u4e86\u89e3\u8fd9\u4e9b\u7ec6\u8282\u5c06\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u638c\u63e1\u5b57\u7b26\u6bd4\u8f83\u7684\u539f\u7406\u548c\u5e94\u7528\u3002<\/p>\n<\/p>\n

\n

\u4e00\u3001\u5b57\u7b26\u7684ASCII\u503c<\/h2>\n<\/p>\n

1\u3001\u4ec0\u4e48\u662fASCII\u503c\uff1f<\/h3>\n<\/p>\n

ASCII\uff08American Standard Code for Information Interchange\uff09\u662f\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u8868\u793a\u5b57\u7b26\u7684\u6807\u51c6\u7f16\u7801\u7cfb\u7edf\u3002\u6bcf\u4e2a\u5b57\u7b26\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684ASCII\u7801\u503c\u3002\u4f8b\u5982\uff0c\u5b57\u6bcd'A'\u7684ASCII\u7801\u503c\u662f65\uff0c\u800c\u5b57\u6bcd'a'\u7684ASCII\u7801\u503c\u662f97\u3002<\/p>\n<\/p>\n

2\u3001\u5982\u4f55\u4f7f\u7528ASCII\u503c\u8fdb\u884c\u6bd4\u8f83\uff1f<\/h3>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684ord()<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u5b57\u7b26\u7684ASCII\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

char1 = 'A'<\/p>\n
char2 = 'B'<\/p>\n
print(ord(char1))  # \u8f93\u51fa 65<\/p>\n
print(ord(char2))  # \u8f93\u51fa 66<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u6bd4\u8f83\u8fd9\u4e9bASCII\u503c\uff0c\u53ef\u4ee5\u786e\u5b9a\u5b57\u7b26\u7684\u5927\u5c0f\u5173\u7cfb\uff1a<\/p>\n<\/p>\n
if ord(char1) < ord(char2):<\/p>\n
    print(f"{char1} is less than {char2}")<\/p>\n
else:<\/p>\n
    print(f"{char1} is greater than or equal to {char2}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u76f4\u63a5\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/h2>\n<\/p>\n
1\u3001\u4f7f\u7528\u6bd4\u8f83\u8fd0\u7b97\u7b26\u8fdb\u884c\u5b57\u7b26\u6bd4\u8f83<\/h3>\n<\/p>\n
Python\u4e2d\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff08\u5982<<\/code>, ><\/code>, <=<\/code>, >=<\/code>, ==<\/code>, !=<\/code>\uff09\u6765\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u3002\u8fd9\u4e9b\u8fd0\u7b97\u7b26\u4f1a\u6bd4\u8f83\u5b57\u7b26\u7684ASCII\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
char1 = 'A'<\/p>\n
char2 = 'B'<\/p>\n
if char1 < char2:<\/p>\n
    print(f"{char1} is less than {char2}")<\/p>\n
else:<\/p>\n
    print(f"{char1} is greater than or equal to {char2}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u6bd4\u8f83\u4e0d\u540c\u5927\u5c0f\u5199\u7684\u5b57\u7b26<\/h3>\n<\/p>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5927\u5199\u5b57\u6bcd\u548c\u5c0f\u5199\u5b57\u6bcd\u7684ASCII\u503c\u4e0d\u540c\u3002\u4f8b\u5982\uff0c\u5b57\u6bcd'A'\u7684ASCII\u503c\u662f65\uff0c\u800c\u5b57\u6bcd'a'\u7684ASCII\u503c\u662f97\u3002\u56e0\u6b64\uff0c\u5927\u5199\u5b57\u6bcd\u603b\u662f\u5c0f\u4e8e\u5c0f\u5199\u5b57\u6bcd\uff1a<\/p>\n<\/p>\n
char1 = 'A'<\/p>\n
char2 = 'a'<\/p>\n
if char1 < char2:<\/p>\n
    print(f"{char1} is less than {char2}")<\/p>\n
else:<\/p>\n
    print(f"{char1} is greater than or equal to {char2}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u5b57\u7b26\u4e32\u6392\u5e8f<\/h2>\n<\/p>\n
1\u3001\u6309\u5b57\u7b26\u987a\u5e8f\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u6392\u5e8f<\/h3>\n<\/p>\n
Python\u7684sorted()<\/code>\u51fd\u6570\u53ef\u4ee5\u5bf9\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u6309ASCII\u503c\u8fdb\u884c\u6392\u5e8f\uff1a<\/p>\n<\/p>\n
string = "bac"<\/p>\n
sorted_string = ''.join(sorted(string))<\/p>\n
print(sorted_string)  # \u8f93\u51fa 'abc'<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u81ea\u5b9a\u4e49\u6392\u5e8f\u89c4\u5219<\/h3>\n<\/p>\n
\u5982\u679c\u9700\u8981\u6309\u7279\u5b9a\u89c4\u5219\u6392\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528sorted()<\/code>\u51fd\u6570\u7684key<\/code>\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u6309\u5b57\u7b26\u7684\u9006\u5e8f\u6392\u5e8f\uff1a<\/p>\n<\/p>\n
string = "bac"<\/p>\n
sorted_string = ''.join(sorted(string, key=lambda x: -ord(x)))<\/p>\n
print(sorted_string)  # \u8f93\u51fa 'cba'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001Unicode\u5b57\u7b26<\/h2>\n<\/p>\n
1\u3001Unicode\u5b57\u7b26\u7684\u6bd4\u8f83<\/h3>\n<\/p>\n
Python 3\u4e2d\u7684\u5b57\u7b26\u662fUnicode\u5b57\u7b26\uff0c\u53ef\u4ee5\u8868\u793a\u66f4\u591a\u7684\u5b57\u7b26\u96c6\u3002Unicode\u5b57\u7b26\u7684\u6bd4\u8f83\u4e0eASCII\u5b57\u7b26\u76f8\u540c\uff0c\u57fa\u4e8e\u5b57\u7b26\u7684Unicode\u7801\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
char1 = '\u4f60'<\/p>\n
char2 = '\u6211'<\/p>\n
if char1 < char2:<\/p>\n
    print(f"{char1} is less than {char2}")<\/p>\n
else:<\/p>\n
    print(f"{char1} is greater than or equal to {char2}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u83b7\u53d6Unicode\u7801\u503c<\/h3>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528ord()<\/code>\u51fd\u6570\u83b7\u53d6Unicode\u5b57\u7b26\u7684\u7801\u503c\uff1a<\/p>\n<\/p>\n
char = '\u4f60'<\/p>\n
print(ord(char))  # \u8f93\u51fa 20320<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e86\u89e3\u8fd9\u4e9b\u57fa\u672c\u6982\u5ff5\u548c\u65b9\u6cd5\u540e\uff0c\u4f60\u5c06\u80fd\u591f\u5728Python\u4e2d\u7075\u6d3b\u5730\u6bd4\u8f83\u5b57\u7b26\u7684\u5927\u5c0f\u5e76\u5904\u7406\u5b57\u7b26\u4e32\u7684\u6392\u5e8f\u95ee\u9898\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5728Python\u4e2d\uff0c\u5b57\u7b26\u7684\u6bd4\u8f83\u662f\u57fa\u4e8e\u4ec0\u4e48\u6807\u51c6\u7684\uff1f<\/strong>
Python\u4e2d\u5b57\u7b26\u7684\u6bd4\u8f83\u57fa\u4e8e\u5b57\u7b26\u7684Unicode\u503c\u3002\u6bcf\u4e2a\u5b57\u7b26\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684Unicode\u7801\u70b9\uff0c\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u65f6\uff0cPython\u4f1a\u6839\u636e\u8fd9\u4e9b\u7801\u70b9\u7684\u6570\u503c\u8fdb\u884c\u6bd4\u8f83\u3002\u4f8b\u5982\uff0c\u5b57\u6bcd'a'\u7684Unicode\u503c\u4e3a97\uff0c\u800c\u5b57\u6bcd'b'\u7684Unicode\u503c\u4e3a98\uff0c\u56e0\u6b64'a'\u5c0f\u4e8e'b'\u3002<\/p>\n
\u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u5b57\u7b26\u7684\u6bd4\u8f83\uff1f<\/strong>
\u53ef\u4ee5\u4f7f\u7528\u5e38\u89c4\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff0c\u5982<<\/code>\u3001><\/code>\u3001==<\/code>\u7b49\u6765\u6bd4\u8f83\u5b57\u7b26\u3002\u4f8b\u5982\uff1a  <\/p>\n
char1 = 'a'\nchar2 = 'b'\nif char1 < char2:\n    print(f"{char1} is less than {char2}")\n<\/code><\/pre>\n
\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u8f93\u51fa\u201ca is less than b\u201d\uff0c\u8bf4\u660e'a'\u7684Unicode\u503c\u5c0f\u4e8e'b'\u3002<\/p>\n
\u5728Python\u4e2d\uff0c\u5b57\u7b26\u6bd4\u8f83\u4e0e\u5b57\u7b26\u4e32\u6bd4\u8f83\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong>
\u5b57\u7b26\u6bd4\u8f83\u548c\u5b57\u7b26\u4e32\u6bd4\u8f83\u5728\u8bed\u6cd5\u4e0a\u662f\u76f8\u4f3c\u7684\uff0c\u4f46\u5b83\u4eec\u7684\u903b\u8f91\u5b58\u5728\u5dee\u5f02\u3002\u5b57\u7b26\u6bd4\u8f83\u662f\u5bf9\u5355\u4e2a\u5b57\u7b26\u8fdb\u884c\u7684\uff0c\u800c\u5b57\u7b26\u4e32\u6bd4\u8f83\u5219\u662f\u9010\u4e2a\u5b57\u7b26\u8fdb\u884c\u7684\u3002\u4f8b\u5982\uff0c\u5b57\u7b26\u4e32"abc"\u4f1a\u4f9d\u6b21\u4e0e\u5b57\u7b26\u4e32"abd"\u8fdb\u884c\u6bd4\u8f83\uff0c\u76f4\u5230\u627e\u5230\u4e0d\u540c\u7684\u5b57\u7b26\u4e3a\u6b62\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c"abc"\u5c0f\u4e8e"abd"\uff0c\u56e0\u4e3a\u5728\u7b2c\u4e09\u4e2a\u5b57\u7b26\u7684\u4f4d\u7f6e\u4e0a'a'\u5c0f\u4e8e'd'\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u7684\u5927\u5c0f\u53ef\u4ee5\u901a\u8fc7\u5185\u7f6e\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\u6765\u5b9e\u73b0\u3002\u6838\u5fc3\u89c2\u70b9\u5305\u62ec\uff1a\u5b57\u7b26\u7684ASCII\u503c\u3001ord( […]","protected":false},"author":3,"featured_media":1143202,"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\/1143196"}],"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=1143196"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1143196\/revisions"}],"predecessor-version":[{"id":1143206,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1143196\/revisions\/1143206"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1143202"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1143196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1143196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1143196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}