两个半圆,点一下转90°,两个颜色
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.wrap {
border:3px solid black;
200px;
height: 200px;
border-radius: 50%;
overflow: hidden;
margin: 50px auto 0;
position: relative;
background-color: green;
}
.red {
100px;
height: 200px;
position: absolute;
background-color: red;
}
.l {
100px;
height: 200px;
left: 0;
}
.t {
200px;
height: 100px;
top: 0;
}
.r {
100px;
height: 200px;
right: 0;
}
.b {
200px;
height: 100px;
bottom: 0;
}
</style>
</head>
<body>
<div id="app">
<div class="wrap" @click="change" >
<div class="red" :class="red_class" ></div>
</div>
</div>
</body>
<script src="js/vue.js"></script>
<script>
new Vue ({
el:"#app",
data : {
count : 0 ,
red_class:'l',
red_arr :['l','t','r','b']
},
methods:{
change(){
this.count ++;
this.red_class=this.red_arr[this.count %4]
}
},
})
</script>
</html>