#include 
     
       using namespace std; struct Complex { double real; double imaginary; }; int add(int , int); double add(double , double); Complex add(Complex , Complex); int main() { int i = 1 , j = 2; double m = 1.0 , n = 2.0; Complex a , b; a.imaginary = 1.0 , a.real = 1.0; b.imaginary = 1.0 , b.real = 1.0; cout<<"输入i , j"<
      
       >i>>j; int k = add(i , j); cout<<"a + b = "<
       
        <
        
         >m>>n; double s = add(m , n); cout<<"m + n = "<
         <
          
           >a.imaginary>>a.real; cout<<"输入b的imaginary和real值:"<
           
            >b.imaginary>>b.real; // cout<<"a + b = "<
           
          
        
       
      
     

　　运行结果

2

#include 
     
      using namespace std;void qa(int a[],int n){    int i=0,j=n-1;    int m=a[0];    if(n<=1)    {                return ;     }while(i
      
       i;j--){             if(a[j]
       
        m)             {                 a[j--]=a[i];                 break;             }         }     }        a[i]=m;        qa(a,i);        qa(a+i+1,n-i-1);}
       
      
     

 

#include 
      
       using namespace std;void qa(int a[],int n){    int i=0,j=n-1;    int m=a[0];    if(n<=1)    {                return ;     }     while(i
       
        i;j--)         {             if(a[j]
        
         m)             {                 a[j--]=a[i];                 break;             }         }     }        a[i]=m;        qa(a,i);        qa(a+i+1,n-i-1);}int main(void){    int b[10];    int i=0;    cout<<"输入:";    for(i=0;i<10;i++)    {        cin>>b[i];    }        qa(b,10);        cout<<"输出: ";        for(i=0;i<10;i++)           cout<<" "<
        
       
      

　　运行结果

3

#include
      
       #include
       
        #include
        
         using namespace std;class User{public:    void setInfo(string name1 , string passwd1 , string email1);    int setInfo(string name1);    void changePasswd();    void printInfo();private:    string name;    string passwd;    string email;};void User::setInfo(string name1 , string passwd1 , string email1){    name.assign(name1);    passwd.assign(passwd1);    email.assign(email1);}int User::setInfo(string name1)    {    name.assign(name1);    email.assign("");    passwd.assign("111111");    return 0;}void User::changePasswd(){    string oldpassword;    string passwd1;    cout<<"原密码: "<
         
          >oldpassword;    int n = 1;    while(oldpassword != passwd)    {        if(n < 3)        {            int i = 3 - n;            cout<<"错误，请重新输入密码"<
          
           >oldpassword;            n++;        }        else        {            cout<<"验证失败，请稍后再试，暂时退出修改密码程序"<
           
            >passwd1; passwd.assign(passwd1); return;}void User::printInfo(){ cout<<"用户名: "<
            
             <
            
           
          
         
        
       
      

运行结果