{"id":219,"date":"2023-02-23T06:28:56","date_gmt":"2023-02-22T22:28:56","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=219"},"modified":"2023-04-30T15:24:53","modified_gmt":"2023-04-30T07:24:53","slug":"obtain-value-and-text-of-selected-option","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/02\/23\/obtain-value-and-text-of-selected-option\/","title":{"rendered":"\u83b7\u53d6select\u88ab\u9009\u4e2doption\u7684value\u548ctext"},"content":{"rendered":"<h2>JavaScript\u539f\u751f\u7684\u65b9\u6cd5<\/h2>\n<p>1\u3001\u83b7\u53d6select\u5bf9\u8c61<\/p>\n<pre><code class=\"language-javascript\">var myselect = document.getElementById(&quot;my_select&quot;);<\/code><\/pre>\n<p><!-- more --><\/p>\n<p>2\u3001\u62ff\u5230\u9009\u4e2d\u9879\u7684\u7d22\u5f15<\/p>\n<pre><code class=\"language-javascript\">var index = myselect.selectedIndex ; \/\/selectedIndex\u4ee3\u8868\u7684\u662f\u4f60\u6240\u9009\u4e2d\u9879\u7684index<\/code><\/pre>\n<p>3\u3001\u62ff\u5230\u9009\u4e2d\u9879options\u7684value<\/p>\n<pre><code class=\"language-javascript\">myselect.options[index].value;<\/code><\/pre>\n<p>4\u3001\u62ff\u5230\u9009\u4e2d\u9879options\u7684text<\/p>\n<pre><code class=\"language-javascript\">myselect.options[index].text;<\/code><\/pre>\n<h2>jQuery\u65b9\u6cd5\uff08\u524d\u63d0\u662f\u5df2\u7ecf\u52a0\u8f7d\u4e86jquery\u5e93\uff09<\/h2>\n<p>1\u3001\u83b7\u53d6\u9009\u4e2d\u7684\u9879<\/p>\n<pre><code class=\"language-javascript\">var options=$(&quot;#my_select option:selected&quot;);<\/code><\/pre>\n<p>2\u3001\u62ff\u5230\u9009\u4e2d\u9879\u7684\u503c<\/p>\n<pre><code class=\"language-javascript\">alert(options.val());<\/code><\/pre>\n<p>3\u3001\u62ff\u5230\u9009\u4e2d\u9879\u7684\u6587\u672c<\/p>\n<pre><code class=\"language-javascript\">alert(options.text());<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript\u539f\u751f\u7684\u65b9\u6cd5 1\u3001\u83b7\u53d6select\u5bf9\u8c61 var myselect = document.ge [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[84,82],"class_list":["post-219","post","type-post","status-publish","format-standard","hentry","category-frontend-basic","tag-javascript","tag-jquery"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=219"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/219\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}