<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title></title>
<script type="text/javascript">
window.onload=function(){
//创建一个p添加到div2下
myClick("btn01",function(){
//获取两个值
var count=document.getElementById("count");
var point=document.getElementById("point");
var box2=document.getElementById("box2");
for(var i=1;i<=count;i++){
var p=document.createElement("p");
for(var j=1;j<=i;j++){
var logo=document.createTextNode(point);
p.appendChild(logo);
}
box2.appendChild(p);
}
});
function myClick(idStr,fun){
var btn=document.getElementById(idStr);
btn.onclick=fun;
}
};
</script>
</head>
<style type="text/css">
body{
text-align: center;
}
</style>
<body>
<div id="box1">
<h2>输出塔形</h2>
<br><br>
行数:
<input type="text" id="count" value="" />
<br />
符号:
<input type="text" id="point" value="" />
<br>
<button type="button" id="btn01">输出</button>
</div>
<br>
<div id="box2">
</div>
<script type="text/javascript">
</script>
</body>
</html>
代码至是简单的第一行一个第二个两个，具体功能没有实现，
但关键是不能在div2里显示出来，调试了一个早上也没找出问题，很痛苦求解答
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title></title>
</head>
<style type="text/css">
body{
text-align: center;
}
</style>
<body>
<div id="box1">
<h2>输出塔形</h2>
<br><br>
行数:
<input type="text" id="count" value="" />
<br />
符号:
<input type="text" id="point" value="" />
<br>
<button type="button" id="btn01">输出</button>
</div>
<br>
<div id="box2">
</div>
<script type="text/javascript">
window.onload=function(){
//创建一个p添加到div2下
myClick("btn01",function(){
//获取两个值
var count=document.getElementById("count");
var point=document.getElementById("point");
var box2= document.getElementById("box2");
console.log(count);
for(var i=1;i<=count.value;i++){
var p=document.createElement("p");
for(var j = 1;j<= i;j++){
var logo=document.createTextNode(point.value);
p.appendChild(logo);
}
box2.appendChild(p);
}
});
function myClick(idStr,fun){
var btn=document.getElementById(idStr);
btn.onclick=fun;
}
};
</script>
<script type="text/javascript">
</script>
</body>
</html>