实验二课后作业

项目一 标准体重

#include<iostream> 
using namespace std;
int main() 
{
	double h,w,a,b,c; 
	cout<<"请输入您的身高（单位cm）及体重（单位kg）:\n"; 
	cin>>h>>w; 
	a=<span style="font-family: Arial, Helvetica, sans-serif;">h-100; </span>
	b=a+(a*0.2); 
	c=a-(a*0.2); if(c<=w&&w<=b) cout<<"您的体重是正常的\n"; 
	else if(w>b) cout<<"您偏重了";
	else cout<<"您偏轻了"; 
	return 0;
}

项目三  两点之间的距离

#include<cmath>
#include<iostream>
using namespace std;
int main()
{
	double x1,y1,x2,y2,d;
	cout<<"输入<x1,y1><x2,y2>:\n";
	cin>>x1>>y1>>x2>>y2;
	d=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));//
	cout<<"两点之间的距离:"<<d<<endl;
		return 0;
}

 

项目四  模拟ATM

#include<iostream>
using namespace std; 
int main() 
{ int code;
cout<<"HUAHUI银行欢迎您"<<endl;
cout<<"请输入密码:";
cin>>code;
if(code==970818) 
{
	cout<<"1.查询"<<endl;
	cout<<"2.取款"<<endl;
	cout<<"3.存款"<<endl;
	cout<<"4.转账"<<endl;
	cout<<"0.退出"<<endl;
}
else cout<<"密码错误请重新输入";
return 0;
}