如何使手机号中间四位显示 ****

简单粗暴上代码

data() {
		return {
			account: "13123456789",
		}
},
mounted() {
	
	this.substr(this.account)
},
substr(account) {
	var str = account
	var str2 = str.substr(0, 3) + " **** " + str.substr(7);
	this.account = str2
},