cpp7.cpp

vc++程序设计简基本结构说明单示例一到四 vc++程序设计简基本结构说明单示例一到四

#include <iostream.h>//控制浮点数显示
#include <iomanip.h>
void main()
{
    double x=20.0/7,y=18.0/6;
	cout <<x<<endl;
	cout <<setiosflags(ios::scientific)<<x<<endl;
	cout <<setprecision(18)<<x<<endl;
	cout <<setiosflags(ios::fixed)<<x<<endl;     
    cout <<setprecision(0)<<x<<endl;     
    cout <<setprecision(6)<<y<<endl;     		 
	cout <<setiosflags(ios::showpoint)<<y<<endl;  

}