{"id":326270,"date":"2021-02-07T06:25:40","date_gmt":"2021-02-06T22:25:40","guid":{"rendered":"http:\/\/4563.org\/?p=326270"},"modified":"2021-02-07T06:25:40","modified_gmt":"2021-02-06T22:25:40","slug":"%e5%85%b3%e4%ba%8e-crc-%e5%be%aa%e7%8e%af%e5%86%97%e4%bd%99%e6%a0%a1%e9%aa%8c%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=326270","title":{"rendered":"\u5173\u4e8e CRC \u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7684\u95ee\u9898"},"content":{"rendered":"
\n
\n
\n

\u5173\u4e8e CRC \u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7684\u95ee\u9898 <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : phpIsNumberOne <\/span> <\/i> 0<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u6211\u4eec\u4e0a\u5b66\u7684\u65f6\u5019\u8001\u5e08\u662f\u8fd9\u6837\u8bb2\u7684\uff1a
\u53d1\u9001\u7aef\u5c06\u6821\u9a8c\u7801\u8ffd\u52a0\u5728\u6570\u636e\u6700\u540e\u3001\u7136\u540e\u4e00\u8d77\u53d1\u9001\u81f3\u63a5\u6536\u7aef
\u63a5\u6536\u7aef\u6536\u5230\u6570\u636e\u540e\u7528\u751f\u6210\u591a\u9879\u5f0f\u8fdb\u884c\u6a21 2 \u7684\u9664\u6cd5\uff0c\u5982\u679c\u4f59\u6570\u4e3a 0\uff0c\u5219\u65e0\u5dee\u9519\u3002<\/p>\n

\u6211\u5728\u60f3\u63a5\u6536\u7aef\u80fd\u4e0d\u80fd\u5bf9\u539f\u59cb\u6570\u636e\u518d\u8ba1\u7b97\u4e00\u6b21\uff0c\u6bd4\u8f83\u4e24\u6b21\u7684\u6821\u9a8c\u7801\u662f\u5426\u76f8\u540c\u6765\u5224\u65ad\uff1f\u5c31\u50cf md5 \u90a3\u6837<\/p>\n

\u7531\u4e8e\u901a\u5e38\u7684 CRC \u534f\u8bae\uff0c\u5982 CRC32-IEEE \u5b83\u4f1a\u8fdb\u884c\u989d\u5916\u7684\u64cd\u4f5c\uff0c\u5982\u5b57\u8282\u7ffb\u8f6c\uff0c\u7ed3\u679c\u53cd\u8f6c\uff0c\u7ed3\u679c\u5f02\u6216\u7b49\u64cd\u4f5c\uff0c\u53c2\u8003\u3002\u5982\u679c\u8981\u6309\u7167\u8001\u5e08\u8bb2\u7684\u65b9\u6cd5\uff0c\u8fd8\u5f97\u5148\u5bf9\u7ed3\u679c\u8fdb\u884c\u9006\u5411\u64cd\u4f5c\u3002\u5305\u4e2d\u53ea\u6709\u751f\u6210\u7684\u65b9\u6cd5\u3001\u6ca1\u6709\u6821\u9a8c\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (2<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : phpIsNumberOne <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \uff1f\uff1f\u6ca1\u4eba\u77e5\u9053\u5417\uff1f <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : phpIsNumberOne <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u89e3\u51b3\u4e86\uff0chttps:\/\/stackoverflow.com\/questions\/58393307\/verification-of-a-crc-checksum-against-zero<\/p>\n

    CRC32-IEEE\uff0c\u4f60\u628a\u539f\u59cb\u6570\u636e+\u6821\u9a8c\u7801(LSB)\u62fc\u63a5\u7684\u6570\u636e\uff0c\u518d\u8fdb\u884c\u4e00\u6b21\u8ba1\u7b97\uff0c\u7ed3\u679c\u5e94\u8be5\u59cb\u7ec8\u7b49\u4e8e 0x2144DF1C <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n","protected":false},"excerpt":{"rendered":"

    \u5173\u4e8e CRC \u5faa\u73af\u5197\u4f59\u6821\u9a8c\u7684\u95ee\u9898 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/326270"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=326270"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/326270\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=326270"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=326270"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=326270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}