2020-04-29c/c++qq47469499的博客-

我是一个c++萌新，自学了一个月多点，大一的时候上过一点c语言，我现在想用c++来判断一个身份证号时候合法，因为我很垃圾嘛，所以我想让大家尽情的指出我的不足和错误，我写的这个也是不全的，先用生日来判断合法但是我这个不知道我的错误在哪，基本上是自己瞎写的

using namespace std; void happy(int month[2], int a, int day[2], int year[4], int carry1) {  a = month[0] * 10 + month[1]; if (month[0] < 10 && month[1] < 3) { switch (a) { case 1:if (day[0] < 4 || day[0] == 3 && day[1] < 2) { cout << "合法"; } else { cout << "不合法"; }break; case 2:if (carry1 % 4 == 0 && carry1 % 100 != 0 || carry1 % 400 == 0) { if (day[0] < 3 || day[0] == 2 && day[1] < 9) { cout << "合法"; } else { cout << "不合法"; } } else { cout << "不合法"; } if (day[0] < 3 || day[0] == 2 && day[1] < 8) { cout << "合法"; } else { cout << "不合法"; }break; case 3:if (day[0] < 4 || day[0] == 3 && day[1] < 2) { cout << "合法"; } else { cout << "不合法"; }break; case 4:if (day[0] < 4 || day[0] == 3 && day[1] < 1) { cout << "合法"; } else { cout << "不合法"; }break; case 5:if (day[0] < 4 || day[0] == 3 && day[1] < 2) { cout << "合法"; } else { cout << "不合法"; }break; case 6:if (day[0] < 4 || day[0] == 3 && day[1] < 1) { cout << "合法"; } else { cout << "不合法"; }break; case 7:if (day[0] < 4 || day[0] == 3 && day[1] < 2) { cout << "合法"; } else { cout << "不合法"; }break; case 8:if (day[0] < 4 || day[0] == 3 && day[1] < 2) { cout << "合法"; } else { cout << "不合法"; }break; case 9:if (day[0] < 4 || day[0] == 3 && day[1] < 1) { cout << "合法"; } else { cout << "不合法"; }break; case 10:if (day[0] < 4 || day[0] == 3 && day[1] < 2) { cout << "合法"; } else { cout << "不合法"; }break; case 11:if (day[0] < 4 || day[0] == 3 && day[1] < 1) { cout << "合法"; } else { cout << "不合法"; }break; case 12:if (day[0] < 4 || day[0] == 3 && day[1] < 2) { cout << "合法"; } else { cout << "不合法"; }break; } } else { cout << "不合法"; } };  struct year1  { int 省编码[4]; int 城市编码[2]; int year[4]; int month[2]; int  day[2]; int ccc[4]; }; int main(){   struct year1 身份证号; for (int i = 0; i < 5; i++) {    cin >> 身份证号.省编码[i]; } for (int i = 0; i < 3; i++) {    cin >> 身份证号.城市编码[i]; } for (int i = 0; i < 5; i++) {    cin >> 身份证号.year[i]; } for (int i = 0; i < 3; i++) {    cin >> 身份证号.month[i]; } for (int i = 0; i < 3; i++) {    cin >> 身份证号.day[i]; } for (int i = 0; i < 5; i++) {    cin >> 身份证号.ccc[i]; } int a; int carry; happy(身份证号.year[4],a, 身份证号.day[4], 身份证号.year[4],carry);｝