看图
<script>
export default {
onLoad() {
let a = 12345678912
for(let i = 0 ; i < a.length ; i++){
let str1 = a.slice(0,3)
let str2 = a.slice(7,11)
let str3 = str1+'****'+str2
a = str3
}
this.phonenum =a
}
}
<script>