<html>
<head>
</head>
<style>
#div1{400px;height:400px;background-color:red;}
</style>
<script>
function
blue(){
div1=document.getElementById(
'div1'
);
div1.style.backgroundColor=
'blue'
;
}
function
pink(){
div1=document.getElementById(
'div1'
);
div1.style.backgroundColor=
'pink'
;
}
function
black(){
div1=document.getElementById(
'div1'
);
div1.style.backgroundColor=
'black'
;
}
</script>
<body>
<button onclick=
'wr();'
>生成文字</button>
<button onclick=
'blue();'
>blue</button>
<button onclick=
'pink();'
>pink</button>
<button onclick=
'black();'
>black</button>
<div id=
'div1'
>
</div>