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;

      }