indexOf
this.formData.consigneeAddress = 省市区 +详细地址;
const p = this.formData.provinceName + this.formData.cityName + this.formData.regionName;
if (this.formData.consigneeAddress.indexOf(p) !== 0) {
this.$message.error("收件人省市区和收件人详细地址的省市区必须相同");
return false;
}