{"id":1088180,"date":"2025-01-08T13:42:02","date_gmt":"2025-01-08T05:42:02","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1088180.html"},"modified":"2025-01-08T13:42:04","modified_gmt":"2025-01-08T05:42:04","slug":"python%e5%a6%82%e4%bd%95%e5%b0%86%e5%ad%97%e7%ac%a6%e8%bd%ac%e5%8c%96%e4%b8%baascii-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1088180.html","title":{"rendered":"python\u5982\u4f55\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aascii"},"content":{"rendered":"

\"python\u5982\u4f55\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aascii\"<\/p>\n

\u5728Python\u4e2d\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aASCII\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684ord()<\/code>\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536\u4e00\u4e2a\u5b57\u7b26\u5e76\u8fd4\u56de\u5176\u5bf9\u5e94\u7684ASCII\u503c<\/strong>\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u60f3\u77e5\u9053\u5b57\u7b26'A'\u7684ASCII\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528ord('A')<\/code>\uff0c\u8fd9\u5c06\u8fd4\u56de65\u3002\u8be5\u65b9\u6cd5\u7b80\u5355\u4e14\u9ad8\u6548\uff0c\u9002\u7528\u4e8e\u5355\u4e2a\u5b57\u7b26\u7684\u8f6c\u6362<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u5b83\uff0c\u5e76\u6db5\u76d6\u66f4\u590d\u6742\u7684\u60c5\u5883\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4ec0\u4e48\u662fASCII\u7801<\/h3>\n<\/p>\n

ASCII<\/strong>\uff08American Standard Code for Information Interchange\uff0c\u7f8e\u56fd\u4fe1\u606f\u4ea4\u6362\u6807\u51c6\u4ee3\u7801\uff09\u662f\u5b57\u7b26\u7f16\u7801\u7684\u4e00\u79cd\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u663e\u793a\u73b0\u4ee3\u82f1\u8bed\u5b57\u7b26\u548c\u63a7\u5236\u5b57\u7b26\u7684\u6807\u51c6\u3002\u6bcf\u4e2a\u5b57\u7b26\u5bf9\u5e94\u4e00\u4e2a\u552f\u4e00\u7684\u6570\u503c\uff0c\u8fd9\u4e9b\u6570\u503c\u57280\u5230127\u4e4b\u95f4\u3002\u4f8b\u5982\uff0c\u5b57\u6bcd'A'\u7684ASCII\u503c\u662f65\uff0c\u800c\u5b57\u6bcd'a'\u7684ASCII\u503c\u662f97\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u4f7f\u7528ord()<\/code>\u51fd\u6570\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aASCII<\/h3>\n<\/p>\n

ord()<\/code>\u51fd\u6570\u662fPython\u5185\u7f6e\u51fd\u6570\uff0c\u53ef\u4ee5\u5feb\u901f\u5c06\u5b57\u7b26\u8f6c\u6362\u4e3a\u5176\u5bf9\u5e94\u7684ASCII\u503c<\/strong>\u3002\u5b83\u53ea\u80fd\u63a5\u6536\u4e00\u4e2a\u5b57\u7b26\uff0c\u5e76\u8fd4\u56de\u5176\u5bf9\u5e94\u7684\u6574\u6570\u503c\u3002\u5982\u679c\u8f93\u5165\u7684\u4e0d\u662f\u5355\u4e2a\u5b57\u7b26\uff0c\u4f1a\u5f15\u53d1TypeError\u3002<\/p>\n<\/p>\n

char = 'A'<\/p>\n
ascii_value = ord(char)<\/p>\n
print(f"The ASCII value of '{char}' is {ascii_value}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0cord('A')<\/code>\u8fd4\u56de65\uff0c\u8868\u793a\u5b57\u7b26'A'\u7684ASCII\u503c\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u6279\u91cf\u8f6c\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u4e3aASCII<\/h3>\n<\/p>\n
\u6709\u65f6\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5c06\u6574\u4e2a\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u90fd\u8f6c\u6362\u4e3a\u5176ASCII\u503c\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u5e76\u4f7f\u7528ord()<\/code>\u51fd\u6570\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
def string_to_ascii(string):<\/p>\n
    ascii_values = [ord(char) for char in string]<\/p>\n
    return ascii_values<\/p>\n
string = "Hello"<\/p>\n
ascii_values = string_to_ascii(string)<\/p>\n
print(f"The ASCII values of the string '{string}' are {ascii_values}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0cstring_to_ascii<\/code>\u51fd\u6570\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u5e76\u4f7f\u7528ord()<\/code>\u51fd\u6570\u5c06\u5176\u8f6c\u6362\u4e3aASCII\u503c\u3002\u6700\u540e\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u6240\u6709ASCII\u503c\u7684\u5217\u8868\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5904\u7406\u7279\u6b8a\u5b57\u7b26<\/h3>\n<\/p>\n
\u7279\u6b8a\u5b57\u7b26<\/strong>\u548c\u63a7\u5236\u5b57\u7b26<\/strong>\u4e5f\u6709\u5176\u5bf9\u5e94\u7684ASCII\u503c\u3002\u4f8b\u5982\uff0c\u6362\u884c\u7b26\\n<\/code>\u7684ASCII\u503c\u662f10\uff0c\u5236\u8868\u7b26\\t<\/code>\u7684ASCII\u503c\u662f9\u3002\u4f60\u53ef\u4ee5\u50cf\u5904\u7406\u666e\u901a\u5b57\u7b26\u4e00\u6837\uff0c\u4f7f\u7528ord()<\/code>\u51fd\u6570\u6765\u5904\u7406\u8fd9\u4e9b\u7279\u6b8a\u5b57\u7b26\u3002<\/p>\n<\/p>\n
special_char = '\\n'<\/p>\n
ascii_value = ord(special_char)<\/p>\n
print(f"The ASCII value of the special character '\\\\n' is {ascii_value}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u9519\u8bef\u5904\u7406<\/h3>\n<\/p>\n
\u5f53\u8f93\u5165\u7684\u5b57\u7b26\u4e0d\u662f\u5355\u4e2a\u5b57\u7b26\u65f6\uff0cord()<\/code>\u51fd\u6570\u4f1a\u5f15\u53d1TypeError\u3002\u4e3a\u786e\u4fdd\u4ee3\u7801\u7684\u5065\u58ee\u6027\uff0c\u5e94\u8be5\u8fdb\u884c\u9519\u8bef\u5904\u7406\u3002<\/p>\n<\/p>\n
def SAFe<\/a>_ord(char):<\/p>\n
    try:<\/p>\n
        return ord(char)<\/p>\n
    except TypeError:<\/p>\n
        print(f"Error: '{char}' is not a single character.")<\/p>\n
        return None<\/p>\n
char = "AB"<\/p>\n
ascii_value = safe_ord(char)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0csafe_ord<\/code>\u51fd\u6570\u5728\u8c03\u7528ord()<\/code>\u4e4b\u524d\u8fdb\u884c\u9519\u8bef\u5904\u7406\uff0c\u786e\u4fdd\u8f93\u5165\u7684\u5b57\u7b26\u662f\u5355\u4e2a\u5b57\u7b26\u3002<\/p>\n<\/p>\n
\u516d\u3001\u5b57\u7b26\u7f16\u7801\u7684\u5176\u4ed6\u65b9\u5f0f<\/h3>\n<\/p>\n
\u867d\u7136ord()<\/code>\u51fd\u6570\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u4f46\u8fd8\u6709\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5b57\u7b26\u8f6c\u6362\u4e3aASCII\u7801\u3002\u4f8b\u5982\uff0c\u4f7f\u7528struct<\/code>\u6a21\u5757\u7684pack<\/code>\u548cunpack<\/code>\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
import struct<\/p>\n
char = 'A'<\/p>\n
ascii_value = struct.unpack('B', char.encode())[0]<\/p>\n
print(f"The ASCII value of '{char}' using struct is {ascii_value}")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0cstruct.unpack<\/code>\u5c06\u5b57\u7b26\u7f16\u7801\u4e3a\u5b57\u8282\uff0c\u7136\u540e\u5c06\u5176\u89e3\u5305\u4e3a\u6574\u6570\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n
\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aASCII\u503c\u5728\u8bb8\u591a\u5e94\u7528\u573a\u666f\u4e2d\u975e\u5e38\u6709\u7528\u3002\u4f8b\u5982\uff0c\u5728\u52a0\u5bc6<\/strong>\u3001\u6570\u636e\u538b\u7f29<\/strong>\u3001\u901a\u4fe1\u534f\u8bae<\/strong>\u7b49\u9886\u57df\uff0c\u90fd\u9700\u8981\u5904\u7406\u5b57\u7b26\u548cASCII\u7801\u4e4b\u95f4\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n
\u516b\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
Python\u4e2d\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aASCII\u503c\u7684\u65b9\u6cd5\u4e3b\u8981\u662f\u4f7f\u7528ord()<\/code>\u51fd\u6570<\/strong>\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u3001\u9ad8\u6548\u4e14\u9002\u7528\u4e8e\u5404\u79cd\u5b57\u7b26\uff0c\u5305\u62ec\u666e\u901a\u5b57\u7b26\u548c\u7279\u6b8a\u5b57\u7b26\u3002\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u6765\u6279\u91cf\u8f6c\u6362\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u65b9\u6cd5\u5982struct<\/code>\u6a21\u5757\u6765\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\u3002\u65e0\u8bba\u662f\u54ea\u79cd\u65b9\u6cd5\uff0c\u7406\u89e3\u548c\u638c\u63e1\u5b57\u7b26\u4e0eASCII\u7801\u7684\u8f6c\u6362\u662f\u5904\u7406\u6587\u672c\u6570\u636e\u7684\u91cd\u8981\u6280\u80fd\u3002<\/p>\n<\/p>\n
\u901a\u8fc7\u672c\u6587\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u76f8\u4fe1\u4f60\u5df2\u7ecf\u638c\u63e1\u4e86\u5982\u4f55\u5728Python\u4e2d\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aASCII\u503c\u7684\u5404\u79cd\u65b9\u6cd5\u548c\u5e94\u7528\u573a\u666f\u3002\u5e0c\u671b\u8fd9\u4e9b\u5185\u5bb9\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5c06\u5b57\u7b26\u8f6c\u6362\u4e3aASCII\u7801\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684ord()<\/code>\u51fd\u6570\u5c06\u5b57\u7b26\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684ASCII\u7801\u3002\u4f8b\u5982\uff0cord('A')<\/code>\u4f1a\u8fd4\u56de65\uff0c\u8fd9\u662f\u5b57\u6bcdA\u7684ASCII\u503c\u3002\u5bf9\u4e8e\u4efb\u4f55\u5355\u4e2a\u5b57\u7b26\uff0c\u6b64\u65b9\u6cd5\u90fd\u6709\u6548\u3002<\/p>\n
\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u8f6c\u6362\u4e3aASCII\u7801\u5417\uff1f<\/strong>
\u5f53\u7136\u53ef\u4ee5\uff01\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff0c\u5e76\u5c06\u6bcf\u4e2a\u5b57\u7b26\u8f6c\u6362\u4e3a\u5176\u5bf9\u5e94\u7684ASCII\u7801\u3002\u4f8b\u5982\uff1aascii_values = [ord(char) for char in 'Hello']<\/code>\uff0c\u8fd9\u5c06\u8fd4\u56de\u4e00\u4e2a\u5305\u542bH\u3001e\u3001l\u3001l\u548co\u5404\u81eaASCII\u503c\u7684\u5217\u8868\u3002<\/p>\n
\u5982\u4f55\u5c06ASCII\u7801\u8f6c\u6362\u56de\u5b57\u7b26\uff1f<\/strong>
\u8981\u5c06ASCII\u7801\u8f6c\u6362\u56de\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528chr()<\/code>\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u63a5\u53d7\u4e00\u4e2aASCII\u7801\uff0c\u5e76\u8fd4\u56de\u5bf9\u5e94\u7684\u5b57\u7b26\u3002\u4f8b\u5982\uff0cchr(65)<\/code>\u4f1a\u8fd4\u56de'A'\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u4eceASCII\u503c\u6062\u590d\u539f\u59cb\u5b57\u7b26\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5c06\u5b57\u7b26\u8f6c\u5316\u4e3aASCII\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684ord()\u51fd\u6570\u3002\u8fd9\u4e2a\u51fd\u6570\u63a5\u6536\u4e00\u4e2a\u5b57\u7b26\u5e76\u8fd4\u56de\u5176\u5bf9\u5e94\u7684AS […]","protected":false},"author":3,"featured_media":1088189,"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\/1088180"}],"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=1088180"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1088180\/revisions"}],"predecessor-version":[{"id":1088192,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1088180\/revisions\/1088192"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1088189"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1088180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1088180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1088180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}