●●● ●●●●● C++程序例子 ●●●● ●●● ● #include <iostream> using namespace std int main(int argc, char*argvD) int a b c a=13; b=20 c=a+b cout <<The sum is" <<endl cout<<c<<end return oC++程序例子 #include <iostream> using namespace std; int main(int argc, char* argv[]) { int a,b,c; a=13; b=20; c=a+b; cout<<"The sum is"<<endl; cout<<c<<endl; return 0; } 4