day65作业

  1. 有 红、黄、蓝 三个按钮，以及一个200x200矩形框box，点击不同的按钮，box的颜色会被切换为指定的颜色
<body>
<div id="app">
    <p :style="{width:w,height:h,backgroundColor:bg}">{{ msg }}</p>
    <button @click="fn('red')">红</button>
    <button @click="fn('yellow')">黄</button>
    <button @click="fn('blue')">蓝</button>
    <button @click="fn('white')">取消</button>
</div>
<script src="js/vue.js"></script>
<script>
    new Vue({
        el:'#app',
        data:{
            msg:'box',
            w:'200px',
            h:'200px',
            bg:'red'
        },
        methods:{
            fn(color){
                this.bg = color
            }

        }
    })
</script>
</body>

2.有一个200x200矩形框wrap，点击wrap本身，记录点击次数，如果是1次wrap为pink色，2次wrap为green色，3次wrap为cyan色，4次重新回到pink色，依次类推

<body>

<div id="app">

    <button :style="{width:w,height:h,backgroundColor:c}" @click="changeColor">{{ wrap }}</button>
    <p>点击的次数：{{ num }}</p>
</div>

<script src="js/vue.js"></script>
<script>
    new Vue({
        el: '#app',
        data: {
            wrap: '我是wrap框，请点我!',
            w:'200px',
            h:'200px',
            c:'white',
            num: 0,
            colorArr:['pink','green','cyan'],
        },
        methods:{
            changeColor(){
                let n = this.num += 1;
                this.c = this.colorArr[n % 3];
            }
        }
    })
</script>
</body>
  1. 图形初始左红右绿，点击一下后变成上红下绿，再点击变成右红左绿，再点击变成下红上绿，依次类推
<style>
        .box {
            width: 200px;
            height: 200px;
            border: 1px solid black;
            border-radius: 50%;
            overflow: hidden;
            position: relative;
        }

        .b1 {
            background-color: red;
            position: absolute;
        }

        .b2 {
            background-color: green;
            position: absolute;
        }

        .l {
            width: 100px;
            height: 200px;
            left: 0;
        }

        .r {
            width: 100px;
            height: 200px;
            right: 0;
        }

        .t {
            width: 200px;
            height: 100px;
            top: 0;
        }

        .b {
            width: 200px;
            height: 100px;
            bottom: 0;
        }
    </style>
    
    
<body>
<div id="app">
    <div class="box" @click="clickAction">
        <div class="b1" :class="c1"></div>
        <div class="b2" :class="c2"></div>
    </div>
</div>

<script src="js/vue.js"></script>
<script>
    let app = new Vue({
        el: '#app',
        data: {
            count: 1,
            c1: 'l',
            c2: 'r',
            c1Arr: ['l', 't', 'r', 'b'],
            c2Arr: ['r', 'b', 'l', 't']
        },
        methods: {
            clickAction() {
                let n = this.count += 1;
                this.c1 = this.c1Arr[n % 4];
                this.c2 = this.c2Arr[n % 4];
            }
        }
    });
    // 利用定时器自动旋转图像
    // setInterval(function () {
    //     app.clickAction();
    // }, 500)
</script>
</body>
posted @ 2019-12-16 21:20  GeminiMp  阅读(272)  评论(0)    收藏  举报