vue验证码组件使用方法详解

<template>     <div class="join_formitem">       <label class="enquiry">验证码<span>:</span></label>       <div class="captcha">         <input type="text" placeholder="请输入验证码" class="yanzhengma_input" v-model="picLyanzhengma" />         <input type="button" @click="createdCode" class="verification" v-model="checkCode" />       </div>    </div></template><script>export default {  data(){    return{      code:'',      checkCode:'',                         picLyanzhengma:''         //..验证码图片    }  },  created(){    this.createdCode()  },  methods: {    // 图片验证码    createdCode(){      // 先清空验证码输入      this.code = ""      this.checkCode = ""      this.picLyanzhengma = ""      // 验证码长度      const codeLength = 4      // 随机数      const random = new Array(0,1,2,3,4,5,6,7,8,9,'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z')      for(let i = 0;i < codeLength;i++){        // 取得随机数的索引(0~35)        let index = Math.floor(Math.random() * 36)        // 根据索引取得随机数加到code上        this.code += random[index]      }      // 把code值赋给验证码      this.checkCode = this.code    }  }}</script><style>.yanzhengma_input{  font-family: 'Exo 2',sans-serif;  border: 1px solid #fff;  color: #fff;  outline: none;  border-radius: 12px;  letter-spacing: 1px;  font-size: 17px;  font-weight: normal;  background-color: rgba(82,56,76,.15);  padding: 5px 0 5px 10px;  margin-left: 30px;  height: 30px;  margin-top: 25px;  border: 1px solid #e6e6e6;}.verification{  border-radius: 12px;  width: 100px;  letter-spacing: 5px;  margin-left: 50px;  height: 40px;  transform: translate(-15px,0);}.captcha{  height:50px;  text-align: justify;}</style>