{"id":179,"date":"2021-02-26T22:23:12","date_gmt":"2021-02-26T14:23:12","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/javascript\/?p=179"},"modified":"2021-02-26T22:23:13","modified_gmt":"2021-02-26T14:23:13","slug":"js-%e8%bf%90%e7%ae%97%e7%ac%a6-4","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/javascript\/post-179.html","title":{"rendered":"Js \u8fd0\u7b97\u7b26: &#038;&#038;, ||, ? :"},"content":{"rendered":"\n<p>\u8fd9\u91cc\u4ecb\u7ecd Js \u8fd0\u7b97\u7b26\uff1a&amp;&amp;\uff0c||\uff0c? :<\/p>\n\n\n\n<h5>1.\u903b\u8f91\u4e0e\u8fd0\u7b97\u7b26\uff1a&amp;&amp;<\/h5>\n\n\n\n<p>\u5f53\u5de6\u53f3\u4e24\u8fb9\u5747\u4e3a\u771f\uff0c\u5219\u4e3a\u771f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>var a = 10;\nvar b = 5;\nvar b1 = a>1 &amp;&amp; b&lt;0;  \/\/\u5219b1\u7684\u503c\u662f true \nvar b2 = a>100 &amp;&amp; ++b; \/\/\u5f53\u6267\u884c\u5de6\u8fb9\u65f6\u5df2\u77e5\u4e3a\u5047\uff0c\u5fc5\u5b9a\u4e3a\u5047\uff0c\u6545\u53f3\u8fb9\u4e0d\u6267\u884c\ndocument.write(b);  \/\/\u67e5\u770bb\u7684\u503c\uff0c\u4ecd\u662f5\uff0c\u8bf4\u660e\u53f3\u8fb9\u672a\u88ab\u6267\u884c<\/code><\/pre>\n\n\n\n<h5>2.\u903b\u8f91\u6216\u8fd0\u7b97\u7b26\uff1a||<\/h5>\n\n\n\n<p>\u5f53\u5de6\u53f3\u4e24\u8fb9\u6709\u4e00\u5904\u4e3a\u771f\uff0c\u5219\u4e3a\u771f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>var c = 10;\nvar d = 5;\nvar b3 = c&lt;5 || d>1;  \/\/\u5219b3\u7684\u503c\u662f true\nvar b4 = c>2 || ++d;  \/\/\u6267\u884c\u5de6\u8fb9\u65f6\uff0c\u5df2\u77e5\u4e3a\u771f\uff0c\u5219\u5fc5\u5b9a\u4e3a\u771f\uff0c\u6545\u53f3\u8fb9\u4e0d\u6267\u884c\ndocument.write(d);  \/\/\u67e5\u770bd\u7684\u503c\uff0c\u4ecd\u662f5\uff0c\u8bf4\u660e\u53f3\u8fb9\u672a\u88ab\u6267\u884c<\/code><\/pre>\n\n\n\n<h5>3.\u4e09\u5143\u8fd0\u7b97\u7b26\uff1a? :<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>var e = 10;\nvar f = 5;\nvar g = e>5?e:f;   \/\/\u5982\u679c ? \u524d\u7684\u6761\u4ef6\u6b63\u786e,\u5373 e>5 \u4e3a\u771f\uff0c\n\/\/\u5219 g \u7684\u503c\u662f:\u524d\u7684\u503c e\uff0c\u5426\u5219 g \u7684\u503c\u662f:\u540e\u7684\u503c f<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u91cc\u4ecb\u7ecd Js \u8fd0\u7b97\u7b26\uff1a&amp;&amp;\uff0c||\uff0c? : 1.\u903b\u8f91\u4e0e\u8fd0\u7b97\u7b26\uff1a&amp;&amp; \u5f53\u5de6\u53f3\u4e24\u8fb9&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/javascript\/post-179.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">Js \u8fd0\u7b97\u7b26: &#038;&#038;, ||, ? :<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts\/179"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/comments?post=179"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts\/179\/revisions"}],"predecessor-version":[{"id":180,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/posts\/179\/revisions\/180"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/media?parent=179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/categories?post=179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javascript\/wp-json\/wp\/v2\/tags?post=179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}