統一社會信用代碼的校驗

    CheckSocialCreditCode(Code) {
      var patrn = /^[0-9A-Z]+$/; //18位校驗及大寫校驗
      if (Code.length != 18 || patrn.test(Code) == false) {
        console.log(1234);
        return false;
      } else {
        var Ancode; //統一社會信用代碼的每一個值
        var Ancodevalue; //統一社會信用代碼每一個值的權重
        var total = 0;
        var weightedfactors = [
          1,
          3,
          9,
          27,
          19,
          26,
          16,
          17,
          20,
          29,
          25,
          13,
          8,
          24,
          10,
          30,
          28
        ]; //加權因子
        var str = "0123456789ABCDEFGHJKLMNPQRTUWXY"; //不用I、O、S、V、Z
        for (var i = 0; i < Code.length - 1; i++) {
          Ancode = Code.substring(i, i + 1);
          Ancodevalue = str.indexOf(Ancode);
          total = total + Ancodevalue * weightedfactors[i]; //權重與加權因子相乘之和
        }
        var logiccheckcode = 31 - (total % 31);
        if (logiccheckcode == 31) {
          logiccheckcode = 0;
        }
        var Str =
          "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,J,K,L,M,N,P,Q,R,T,U,W,X,Y";
        var Array_Str = Str.split(",");
        logiccheckcode = Array_Str[logiccheckcode];

        var checkcode = Code.substring(17, 18);
        if (logiccheckcode != checkcode) {
          console.log(123);
          return false;
        } else {
        }
        return true;
      }
    },
    cheackCreditCode(value) {
      if (this.CheckSocialCreditCode(value) == false) {
        this.$message({
          message: "請輸入有效的信用代碼!",
          type: "error"
        });
        return false;
      }
    },