关于vue.js:写了一个密码输入框pc

次要思路：

• 应用 input 用于输出，宽高刚好等于六个明码框就行
• 应用六个 div 用于展现输出的明码应用 * 号代替也可
• 每个明码块里写一个用于展现提示符的 div 依据 place 匹配提示符应该呈现的格子
• input 的层级须要高于六个明码展现块，设置 opacity: 0; 把 input 暗藏起来，这样用户就看不到 input 框，点击明码块的时候其实是点击的 input 框进行输出
• 明码块遍历明码数组做对应的展现就行

代码如下：

<template>
  <div class="salary-container">
    <div class="dialog">
      <div class="box-border">
        <div class="box">
          <input class="int" v-model="name" maxlength="6" type="text">
          <div class="enter" v-for="(item, index) in password">
            <!-- 跳跃的批示符 -->
            <div :class="{'tips': place == index}"></div>
            {{item}}
          </div>
        </div>
      </div>
    </div>
    
  </div>
</template>
<script>
export default {data() {
    return {
      name: '',
      place: 0,
      password: ['','','','','','']
    }
  },
  created() {this.init()
  },
  watch: {name(newV){let arr = newV.split('')  // 转为数组
      if(arr.length > 6){arr = arr.splice(0, 6)  // 只取六位
      }
      this.place = arr.length   // 更新批示符的地位
      this.password = ['','','','','','']
      arr.map((item, index) => {this.password[index] = item 
      })
    }
  },
}
</script>

<style lang="scss" scoped>
@keyframes fade { // 闪动的动画
    from {opacity: 1.0;}
    50% {opacity: 0.2;}
    to {opacity: 1.0;}
}
.dialog{
  width: 100vw;
  height: 100vh;
  z-index: 999;
  background-color: rgba(0,0,0, .6);
  display: flex;
  justify-content: center;
  align-items: center;
  .box-border{
    width: 500px;
    height: 200px;
    background-color: #fff;
    border: 1px solid #fff;
    box-shadow: 0px 0px 10px rgba(0,0,0, .6) inset;
    display: flex;
    justify-content: center;
    align-items: center;
    .box{
      position: relative;
      display: flex;
      .enter{
        width: 50px;
        height: 50px;
        border: 1px solid #000;
        margin: 0 5px 0 0;
        z-index: 100;
        display: flex;
        font-size: 30px;
        justify-content: center;
        align-items: center;
        // 跳跃的批示符
        .tips{
          height: 30px;
          width: 1px;
          background-color: #000;
          animation: fade 1000ms infinite;
        }
      }
      .int{
        border: none;
        display: inline-block;
        width: 100%;
        height: 50px;
        position: absolute;
        z-index: 999;
        opacity: 0;
      }
    }
    
  }
}

.salary-container{padding:30px;}
</style>

效果图：