c.cc文件：

#include 
     
      #include 
      
        #include 
       
        int main(int argc, char const *argv[]){	int a,b,c;	a = atoi(argv[1]); //字符串转整数	b = atoi(argv[2]);	c = a * b;	char *outcome;	sprintf(outcome,"%d",c); //整数转字符串	std::cout<
        
         <<"*"<
         
          <<"="<
          
           <
          
         
        
       
      
     

 

编译：

g++ c.cc -o c

 

运行：

./c Two\ Young

 

结果：

Hello World! Two Young!