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;
}

#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;
}