c++作业2

#include<iostream>
using namespace std;
int main()
{
cout<<"陈氏银行欢迎您！\n请输入您的银行卡密码:";
int password,select;
cin>>password;if(password<1000000 && password>100000)
if(password==970116)
{
cout<<"密码正确\n可进行操作如下:"<<"\n0.查询"<<"\n1.取款"<<"\n2.存款"<<"\n3.转账"<<"\n4.退出"<<endl;
cout<<"请选择您要进行的操作并确认";
cin>>select;
cout<<"谢谢，您选择了"<<select<<"号功能\n感谢您的使用，再见"<<endl;
}
else
cout<<"您输入的密码错误"<<endl;
else
cout<<"正确密码为六位数，请核对无误后再次输入"<<endl;
return 0;
}

#include<iostream>
#include<cmath>
using namespace std;
int main()
{
double x1,y1,x2,y2,d;
cout<<"输入两点的坐标:";
cin>>x1>>y1>>x2>>y2;
d=sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
cout<<"两点之间的距离为:"<<d<<endl;
return 0;
}

#include<iostream>
using namespace std;
int main()
{
double h,m,s;
cout<<"您的身高为:(cm),您的体重为:(kg)";
cin>>h>>m;
s=h-100;
cout<<"您的标准体重为"<<s<<endl;
if((s-m)-0.2*s>0)
cout<<"您体重超轻，要多吃点啦";
else
if((s-m)-0.2*s>0)
cout<<"您的体重超重，要少吃锻炼啊";
else
cout<<"恭喜您，您的体重正常，要继续保持哦";
cout<<'\n';
return 0;
}