原生js配合canvas实现验证码的生成与验证
function yzmFun(selector,w,h){
// 随机数的生成
function randomNum...(min,max)
let g = randomNum(min,max)
let b = randomNum(min,max)
return `rgb(${r},${g},${b...(0,pool.length)]
//随机出字体大小
let fs = randomNum(18,40)
//随机字体角度
let deg = randomNum(-30,30...(0,w),randomNum(0,h))
ctx.lineTo(randomNum(0,w),randomNum(0,h))
ctx.strokeStyle = randomColor