本文实例为大家分享了Vue实现验证码的具体代码，供大家参考，具体内容如下
1.效果
2.代码
2.1 创建js组件
内容
（可直接粘贴过去，需要改宽度和高度，修改_init方法中的宽和高）
function GVerify (options) { // 创建一个图形验证码对象，接收options对象为参数
this.options = { // 默认options参数值
id: '', // 容器Id
canvasId: 'verifyCanvas', // canvas的ID
width: '80', // 默认canvas宽度
height: '30', // 默认canvas高度
type: 'number', // 图形验证码默认类型blend:数字字母混合类型、number:纯数字、letter:纯字母
code: ''
} if (Object.prototype.toString.call(options) === '[object Object]') { // 判断传入参数类型
for (var i in options) { // 根据传入的参数，修改默认参数值
this.options[i] = options[i] }
} else {
this.options.id = options
}
this.options.numArr = '0,1,2,3,4,5,6,7,8,9'.split(',')
this.options.letterArr = getAllLetter()
this._init()
this.refresh()
}
GVerify.prototype = {
/** 版本号**/
version: '1.0.0',
/** 初始化方法**/
_init: function () {
var con = document.getElementById(this.options.id)
var canvas = document.createElement('canvas')
// this.options.width = con.offsetWidth > 0 ? con.offsetWidth : '30'
// this.options.height = con.offsetHeight > 0 ? con.offsetHeight : '30'
this.options.width = '160'
this.options.height = '50'
canvas.id = this.options.canvasId
canvas.width = this.options.width
canvas.height = this.options.height
canvas.style.cursor = 'pointer'
canvas.innerHTML = '您的浏览器版本不支持canvas'
con.appendChild(canvas)
var parent = this
canvas.onclick = function () {
parent.refresh()
}
},
/** 生成验证码**/
refresh: function () {
var canvas = document.getElementById(this.options.canvasId)
if (canvas.getContext) {
var ctx = canvas.getContext('2d')
}
ctx.textBaseline = 'middle'
ctx.fillStyle = randomColor(180, 240)
ctx.fillRect(0, 0, this.options.width, this.options.height)
if (this.options.type === 'blend') { // 判断验证码类型
var txtArr = this.options.numArr.concat(this.options.letterArr)
} else if (this.options.type === 'number') {
var txtArr = this.options.numArr
} else {
var txtArr = this.options.letterArr
}
for (var i = 1; i <= 4; i++) {
var txt = txtArr[randomNum(0, txtArr.length)] this.options.code += txt
