{"id":106853,"date":"2019-05-07T13:51:00","date_gmt":"2019-05-07T05:51:00","guid":{"rendered":"https:\/\/www.lixiangluntan.com\/106853.html"},"modified":"2019-05-07T13:51:00","modified_gmt":"2019-05-07T05:51:00","slug":"%e5%90%8c%e8%8a%b1%e9%a1%ba%e7%b2%be%e5%93%81%e5%85%ac%e5%bc%8f%e4%b9%8b%e5%88%86%e9%9a%94%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/www.lixiangluntan.com\/?p=106853","title":{"rendered":"\u540c\u82b1\u987a\u7cbe\u54c1\u516c\u5f0f\u4e4b\u5206\u9694\u7b26"},"content":{"rendered":"<blockquote style=\"font-size:15px;background-color: #F5F5F5;border:none;padding: 5px;margin:15px;line-height: 1.6;text-indent: 2em;\">\n<p style=\"margin-bottom:5px;\">\u5927\u667a\u6167\u4e91\u51fd\u6570<\/p>\n<\/p>\n<\/blockquote>\n<blockquote style=\"font-size:15px;background-color: #F5F5F5;border:none;padding: 5px;margin:15px;line-height: 1.6;text-indent: 2em;\">\n<p style=\"margin-bottom:5px;\">\u3010\u80a1\u7968\u8d44\u6e90\u9986\u3011\u540c\u82b1\u987a\u5b9e\u65f6\u6e2f\u80a1\u7834\u89e3,\u540c\u82b1\u987a\u8d22\u5bcc\u4e3b\u529b\u7834\u89e3,\u5927\u667a\u6167\u8d22\u5bcc\u7834\u89e3\u7248,\u901a\u8fbe\u4fe1\u8d22\u5bcc\u7834\u89e3\u7248,\u901a\u8fbe\u4fe1\u4e13\u4e1a\u7248\u7834\u89e3,\u901a\u8fbe\u4fe1\u7814\u7a76\u7248\u7834\u89e3,\u901a\u8fbe\u4fe1\u8d85\u8d62\u7248\u7834\u89e3,\u80a1\u7968\u516c\u5f0f,\u80a1\u7968\u6307\u6807\u516c\u5f0f,\u80a1\u7968\u516c\u5f0f\u5927\u5168,\u6307\u5357\u9488\u8f6f\u4ef6\u7834\u89e3,\u7092\u80a1\u4e66\u7c4d,k\u7ebf\u56fe\u600e\u4e48\u770b,\u80a1\u7968k\u7ebf\u56fe,\u3002<\/p>\n<\/blockquote>\n<p class=\"description\">\n<div class=\"gsdxg\">\n<\/div>\n<p>\u7b26\u53f7<br \/> \u542b\u4e49<\/p>\n<p>\u201c \u201d<br \/> \u5f15\u7528\u5b57\u7b26\u4e32<\/p>\n<p>\u2018 '<br \/> \u5f15\u7528\u5b57\u7b26<\/p>\n<p>( )<br \/> \u63a7\u5236\u8fd0\u7b97\u7684\u4f18\u5148\u7ea7<\/p>\n<p>;<br \/> \u6bcf\u884c\u8bed\u53e5\u7684\u7ed3\u675f\u6807\u5fd7<\/p>\n<p>{ }<br \/> \u5c06\u591a\u4e2a\u8bed\u53e5\u7ec4\u5408\u6210\u4e00\u4e2a\u8bed\u53e5\u4f53<\/p>\n<p>\/* *\/<br \/> \u6ce8\u91ca\uff0c\u65e0\u4efb\u4f55\u5b9e\u9645\u529f\u80fd<\/p>\n<p> \u8d4b\u503c\u8bed\u53e5\uff1a<br \/> \u5176\u4e00\u822c\u5f62\u5f0f\u4e3a:<\/p>\n<p>a=b; \u542b\u4e49\u4e3a\u5c06b\u7684\u503c\u4ed8\u7ed9a\u3002<\/p>\n<p>\u51e0\u4e2a\u8fd0\u7b97\u7b26\u201c\uff1d\u201d\u201c:=\u201d\u201c:\u201d\u201c:&gt;\u201d\u3002\u5176\u542b\u4e49\u5206\u522b\u4e3a\u201c\u8d4b\u503c\u201d\u3001 \u201c\u8d4b\u503c\u201d\u3001\u201c\u8d4b\u503c\u5e76\u8f93\u51fa\u6570\u503c\u6216\u5b57\u7b26\u4e32\u201d\u3001\u201c\u8d4b\u503c\u5e76\u8f93\u51fa\u56fe\u5f62\u201d\u3002<\/p>\n<p>\u6ce8\u610f\uff1a\u201c\uff1d\u201d\u548c\u201c:=\u201d\u4e24\u4e2a\u8fd0\u7b97\u7b26\u7684\u610f\u4e49\u3001\u7528\u6cd5\u5b8c\u5168\u76f8\u540c\u3002\u8fd9\u6837\u505a\u4e3b\u8981\u662f\u4e3a\u4e86\u66f4\u597d\u5730\u517c\u5bb9\u5e02\u573a\u4e0a\u76ee\u524d\u7684\u5404\u79cd\u5e26\u6709\u516c\u5f0f\u7f16\u8f91\u529f\u80fd\u7684\u5206\u6790\u8f6f\u4ef6\u3002<\/p>\n<p>\u6761\u4ef6\u8bed\u53e5\uff1a<br \/> \u5176\u4e00\u822c\u5f62\u5f0f\u4e3a:<\/p>\n<p>IF(\u903b\u8f91\u8868\u8fbe\u5f0f) \u8bed\u53e51;<\/p>\n<p>ELSE \u8bed\u53e52;<\/p>\n<p>\u4e0a\u8ff0\u7ed3\u6784\u8868\u793a: \u5982\u679c\u903b\u8f91\u8868\u8fbe\u5f0f\u7684\u503c\u4e3a\u975e0(TURE)\u5373\u771f, \u5219\u6267\u884c\u8bed\u53e51, \u6267\u884c\u5b8c\u8bed\u53e51\u4ece\u8bed\u53e52\u540e\u5f00\u59cb\u7ee7\u7eed\u5411\u4e0b\u6267\u884c; \u5982\u679c\u8868\u8fbe\u5f0f\u7684\u503c\u4e3a0(FALSE)\u5373\u5047, \u5219\u8df3\u8fc7\u8bed\u53e51\u800c\u6267\u884c\u8bed\u53e52\u3002<\/p>\n<p>\u6ce8\u610f\uff1a<\/p>\n<p>1\u3001\u6761\u4ef6\u6267\u884c\u8bed\u53e5\u4e2d\"ELSE \u8bed\u53e52;\"\u90e8\u5206\u662f\u9009\u62e9\u9879, \u53ef\u4ee5\u7f3a\u7701, \u6b64\u65f6\u6761\u4ef6\u8bed\u53e5\u53d8\u6210:<\/p>\n<p>IF(\u903b\u8f91\u8868\u8fbe\u5f0f) \u8bed\u53e51;<\/p>\n<p>\u8868\u793a\u82e5\u903b\u8f91\u8868\u8fbe\u5f0f\u7684\u503c\u4e3a\u975e0\u5219\u6267\u884c\u8bed\u53e51 , \u5426\u5219\u8df3\u8fc7\u8bed\u53e51\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>2\u3001\u5982\u679c\u8bed\u53e51\u6216\u8bed\u53e52\u6709\u591a\u4e8e\u4e00\u6761\u8bed\u53e5\u8981\u6267\u884c\u65f6, \u5fc5\u987b\u4f7f\u7528\"{\"\u548c\"}\" \u628a\u8fd9\u4e9b\u8bed\u53e5\u5305\u62ec\u5728\u5176\u4e2d, \u6b64\u65f6\u6761\u4ef6\u8bed\u53e5\u5f62\u5f0f\u4e3a:<\/p>\n<p>IF(\u903b\u8f91\u8868\u8fbe\u5f0f) { \u8bed\u53e5\u4f531; }<\/p>\n<p>ELSE { \u8bed\u53e5\u4f532; }<\/p>\n<p>\u8fd9\u91cc\u8bed\u53e5\u4f53\u6307\u591a\u4e2a\u8bed\u53e5\uff0c\u6bcf\u4e2a\u8bed\u53e5\u90fd\u5fc5\u987b\u4ee5\u201c;\u201d\u7ed3\u5c3e\u3002<\/p>\n<p>3. \u6761\u4ef6\u8bed\u53e5\u53ef\u4ee5\u5d4c\u5957, \u8fd9\u79cd\u60c5\u51b5\u7ecf\u5e38\u78b0\u5230, \u4f46\u6761\u4ef6\u5d4c\u5957\u8bed\u53e5\u5bb9\u6613\u51fa\u9519, \u5176\u539f\u56e0\u4e3b\u8981\u662f\u4e0d\u77e5\u9053\u54ea\u4e2aIF\u5bf9\u5e94\u54ea\u4e2aELSE\u3002<\/p>\n<p>\u4f8b\u5982:<\/p>\n<p>IF(x&gt;20 OR x&lt;-10)<\/p>\n<p>IF(y&lt;=100 AND y&gt;x)<\/p>\n<p>A\uff1d\"Good\";<\/p>\n<p>ELSE<\/p>\n<p>B\uff1d\"Bad\";<\/p>\n<p>\u5bf9\u4e8e\u4e0a\u8ff0\u60c5\u51b5, \u89c4\u5b9a: ELSE\u8bed\u53e5\u4e0e\u6700\u8fd1\u7684\u4e00\u4e2aIF\u8bed\u53e5\u5339\u914d, \u4e0a\u4f8b<\/p>\n<p>\u4e2d\u7684ELSE\u4e0eIF(y&lt;=100 AND y&gt;x)\u76f8\u5339\u914d\u3002\u4e3a\u4e86\u4f7fELSE\u4e0eIF(x&gt;20 OR x&lt;-10)\u76f8\u5339\u914d, \u5fc5\u987b\u7528\u82b1\u62ec\u53f7\u3002\u5982\u4e0b\u6240\u793a:<\/p>\n<p>IF(x&gt;20 OR x&lt;-10)<\/p>\n<p>{ IF(y&lt;=100 AND y&gt;x)<\/p>\n<p>A=\"Good\"; }<\/p>\n<p>ELSE B=\"Bad\";<\/p>\n<p>4. \u53ef\u7528\u9636\u68af\u5f0fIF-ELSE-IF\u7ed3\u6784\u3002<\/p>\n<p>\u9636\u68af\u5f0f\u7ed3\u6784\u7684\u4e00\u822c\u5f62\u5f0f\u4e3a:<\/p>\n<p>IF(\u903b\u8f91\u8868\u8fbe\u5f0f1) \u8bed\u53e51;<\/p>\n<p>ELSE IF(\u903b\u8f91\u8868\u8fbe\u5f0f2) \u8bed\u53e52;<\/p>\n<p>ELSE IF(\u903b\u8f91\u8868\u8fbe\u5f0f3) \u8bed\u53e53;<\/p>\n<div class=\"yuansheng1\">\n<div class=\"_1a77a5b7w7ei\"><\/div>\n<p> <script type=\"text\/javascript\">\n    (window.slotbydup = window.slotbydup || []).push({\n        id: \"u6133514\",\n        container: \"_1a77a5b7w7ei\",\n        async: true\n    });\n<\/script>\n<\/div>\n<p>{\u80a1\u7968\u8d44\u6e90\u9986:www.lixiangluntan.com\u4e13\u4e1a\u548c\u8c10\u9ad8\u7aef\u7092\u80a1\u8f6f\u4ef6--\u516c\u5f0f\u7f16\u5199\u4ea4\u6d41--\u52a0QQ751161480--}<a href=\"http:\/\/www.lixiangluntan.com\" target=\"_blank\" rel=\"noopener noreferrer\">\u9ed1\u9a6c\u80a1\u7968<\/a><\/p>\n<blockquote style=\"font-size:15px;background-color: #F5F5F5;border:none;padding: 5px;margin:15px;line-height: 1.6;text-indent: 2em;\">\n<p style=\"margin-bottom:5px;\">\u4fe1\u53f7\u6210\u529f\u7387\u6d4b\u8bd5\u516c\u5f0f<\/p>\n<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u667a\u6167\u4e91\u51fd\u6570 \u3010\u80a1\u7968\u8d44\u6e90\u9986\u3011\u540c\u82b1\u987a\u5b9e\u65f6\u6e2f\u80a1\u7834\u89e3,\u540c\u82b1\u987a\u8d22\u5bcc\u4e3b\u529b\u7834\u89e3,\u5927\u667a\u6167\u8d22\u5bcc\u7834\u89e3\u7248,\u901a\u8fbe\u4fe1\u8d22\u5bcc\u7834\u89e3\u7248,\u901a\u8fbe\u4fe1 ...<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[181],"tags":[182],"class_list":["post-106853","post","type-post","status-publish","format-standard","hentry","category-gsjc","tag-182"],"_links":{"self":[{"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=\/wp\/v2\/posts\/106853","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=106853"}],"version-history":[{"count":0,"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=\/wp\/v2\/posts\/106853\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=106853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=106853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lixiangluntan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=106853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}