是or不是游戏

?

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#include <bits/stdc++.h> #include <windows.h> int main(int argc, char** argv){     int a=10;            if(MessageBox(NULL,"你在心中想个数字，我来猜","是or不是游戏",MB_OK)==IDOK){         if(MessageBox(NULL,"是5及以内吗","是or不是游戏",MB_YESNO)==IDYES){             if(MessageBox(NULL,"是'1'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }else if(MessageBox(NULL,"是'2'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }else if(MessageBox(NULL,"是'3'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }else if(MessageBox(NULL,"是'4'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }else if(MessageBox(NULL,"是'5'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }           }else{             if(MessageBox(NULL,"是'6'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }             else if(MessageBox(NULL,"是'7'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }             else if(MessageBox(NULL,"是'8'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }             else if(MessageBox(NULL,"是'9'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }else if(MessageBox(NULL,"是'10'吗","是or不是游戏",MB_YESNO)==IDYES){                 return 0;             }                   }      }     return 0; }