Use C # To upgrade the ID card number from 15 digits to 18 digits!

1 Using System;
2 Using System. collections;
3
4 Public   Class Myclass
5 {
6 Public   Static   Void Main ()
7 {
8Console. writeline (per15to18 ("429005811009091"));
9RL ();
10}
11
12 Public   Static   String Per15to18 ( String Peridsrc)
13 {
14 Int Is =   0 ;
15  
16 // Weighting Factor constant
17 Int [] IW = New   Int [] { 7 , 9 , 10 , 5 , 8 , 4 , 2 , 1 , 6 , 3 , 7 , 9 , 10 , 5 , 8 , 4 , 2 } ;
18 // Verification Code constant
19 String Lastcode = " 10x98765432 " ;
20 // New ID card number
21 String Peridnew;
22  
23 Peridnew = Peridsrc. substring ( 0 , 6 );
24 // Fill in the numbers '1' and '9' on the 6th and 7th digits.
25 Peridnew + =   " 19 " ;
26  
27 Peridnew + = Peridsrc. substring ( 6 , 9 );
28  
29 // Weighted sum
30 For ( Int I = 0 ; I < 17 ; I ++ )
31 {
32Is+ = Int. Parse (peridnew. substring (I,1))*IW [I];
33}  
34
35 // Modulo operation to obtain the modulo Value
36 Int Iy = Is % 11 ;
37 // Obtain the modulo index number from lastcode and add it to the last digit of the ID card, that is, the new ID card number.
38 Peridnew + = Lastcode. substring (Iy, 1 );
39
40 Return Peridnew;
41 }  
42
43
44
45
46 Helper Methods # Region Helper Methods
47
48 Private   Static   Void WL ( Object Text, Params   Object [] ARGs)
49 {
50Console. writeline (text. tostring (), argS );
51}
52
53 Private   Static   Void RL ()
54 {
55Console. Readline ();
56}
57
58 Private   Static   Void Break ()
59 {
60System. Diagnostics. Debugger. Break ();
61}
62
63 # Endregion
64 }