老师，怎么没有反应?
来源：1-19 自由编程
阿硕A
2020-04-06 16:01:04
<!DOCTYPE html >
<html>
<head>
<meta charset="UTF-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery练习</title>
<style type="text/css">
.div1{
float: left;
width: 50px;
line-height: 30px;
background-color: lightgray;
margin-left: 10px;
text-align: center;
vertical-align: middle;
}
.div2{
width: 300px;
height: 300px;
border: solid gray 1px;
margin-top: 60px;
color: red;
}
</style>
</head>
<body>
<h2>请选择背景颜色</h2>
<div>
<div id="blue" class="div1">蓝色</div>
<div id="green" class="div1">绿色</div>
</div>
<div class="div2" id="bg">
</div>
<div>输入颜色首字母： <input type="text" name="color"></div>
<script type="text/javascript" src="js/jquery-3.3.1.js"></script>
<script type="text/javascript">
$("div#blue").click(function(){
$(div.div2).css("backgroung-color","blue");
});
$("div#green").click(function(){
$(div.div2).css("backgroung-color","green");
});
$("input[name='color']").keypress(function(event){
if(evenr.keyCode ==66){
$(div.div2).css("backgroung-color","blue")
}
});
$("input[name='color']").keypress(function(event){
if(evenr.keyCode ==71){
$(div.div2).css("backgroung-color","green")
}
});
</script>
</body>
</html>
1回答
-
好帮手慕珊
2020-04-06
同学，你好！代码存在如下问题导致没有反应：
1、div.div2需要用双引号引起了，backgroung-color拼写错误，应改为background-color
2、1位置处的单词拼写有误，应该与2位置处的单词一致，建议将1位置处的evenr改为event
上述问题不止在一个位置存在，建议同学整体改一下。改正后的代码如下：
<!DOCTYPE html > <html> <head> <meta charset="UTF-8"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>jQuery练习</title> <style type="text/css"> .div1{ float: left; width: 50px; line-height: 30px; background-color: lightgray; margin-left: 10px; text-align: center; vertical-align: middle; } .div2{ width: 300px; height: 300px; border: solid gray 1px; margin-top: 60px; color: red; } </style> </head> <body> <h2>请选择背景颜色</h2> <div> <div id="blue" class="div1">蓝色</div> <div id="green" class="div1">绿色</div> </div> <div class="div2" id="bg"> </div> <div>输入颜色首字母： <input type="text" name="color"></div> <script type="text/javascript" src="js/jquery-3.3.1.js"></script> <script type="text/javascript"> $("div#blue").click(function(){ $("div.div2").css("background-color","blue"); }); $("div#green").click(function(){ $("div.div2").css("background-color","green"); }); $("input[name='color']").keypress(function(event){ if(event.keyCode ==66){ $("div.div2").css("background-color","blue") } }); $("input[name='color']").keypress(function(event){ if(event.keyCode ==71){ $("div.div2").css("background-color","green") } }); </script> </body> </html>如果我的回答解决了你的疑惑，请采纳！祝学习愉快！
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