前端学堂 http://www.felearn.com
当前位置首页 > 前端技术 > JavaScript> 正文

javascript小程序

2021-04-29 18:33:35 暂无评论 JavaScript javascript   程序

<html><head><title>检查的小程序</title><script language="javascript">function(x) { if(x != 555) tag = false; else tag = true; return tag; }</script></head><body><label for="usr">输入数字555:</label><input type=text id=usr><br><script language="javascript">var tag = false; tag = function(usr.value); alert(tag);</script></body></html>

把var tag = false; tag = function(usr.value); alert(tag);放进<script language = "javascript"></script>标签内