#include<iostream.h>
#include<string.h>
 int main()
{
 char a[20]=" language",*s="C++";
 int x=1,y=2;
 float z=3.4;
 char c='a';
 cerr<<"輸出錯誤信息到屏幕"<<endl;
 clog<<"輸出錯誤信息到屏幕"<<endl;
 cout<<"x="<<x<<",y="<<y<<",z="<<z<<",c="<<c<<endl;
 cout<<"x+y="<<x+y<<endl;
 cout<<"x和y之間較大數="<<(x>y?x:y)<<endl;
 cout.put(c).put('b').put(*s);
 cout<<endl;
 cout.write(s,strlen(s)).write(a,strlen(a));
 cout<<endl; 
 return(0);
}