在我的代码中查找错误（C ++） [英] Find error in my code (C++)

问题描述

//RECTANGLE
#include<iostream.h>
#include<conio.h>
#include<math.h>
#include<process.h>
main()
{
clrscr();
int ch;
char ch1;
long float l,b,area,peri,diag;
cout<<"Rectangle Menu: \n";
cout<<"1.Area\n";
cout<<"2.Perimeter\n";
cout<<"3.Diagonal\n";
cout<<"4.Exit\n";
cout<<"Enter your choice(1-4): ";
do
	{
	cin>>ch;
	if(ch==1 || ch==2 || ch==3)
	{	cout<<"Enter Length and Breadth :\n";
		cin>>l>>b;
	}
	switch(ch)
	{
	case'1':
		area=l*b;
		cout<<"Area= "<<area;
		break;
	case'2':
		peri=2*(l+b);
		cout<<"Perimeter= "<<peri;
		break;
	case'3':
		diag=sqrt((l*l)+(b*b));
		cout<<"Diagonal= "<<diag;
		break;
	case'4':
		cout<<"Exiting....";
		exit(0);
	default:
		cout<<"Wrong choice!!!!";
		cout<<"Enter a valid choice";
		break;
	}
	cout<<"\nWant to enter more(y/n)? ";cin>>ch1;
	if(ch1=='y' || ch1=='Y')
		cout<<"Again enter choice(1-4): ";
	}
	while(ch1=='y' || ch1=='Y');
getch();
}

我的尝试：



i尝试运行此代码..有些问题请帮助

What I have tried:

i tried to run this code..some problem there please help

推荐答案

没有类型 long float 在C / C ++中。有 float ， double 和 long double 。请注意， long double 与 double 相同，其中包含一些编译器和库，如Visual C ++。

There is no type long float in C/C++. There are float, double, and long double. Note that long double is the same as double with some compilers and libraries like with Visual C++.

你声明了int ch;但在切换案例中，您正在比较选项char。将案例更改为

You declared int ch; but in switch case you are comparing options char. change case as

switch(ch)
 {
 case 1:
 area=l*b;
 cout<<"Area= "<<area;
 break;
 case 2:
 peri=2*(l+b);
 cout<<"Perimeter= "<<peri;
 break;
 case 3:
 diag=sqrt((l*l)+(b*b));
 cout<<"Diagonal= "<<diag;
 break;
 case 4:
 cout<<"Exiting....";
 exit(0);
 default:
 cout<<"Wrong choice!!!!";
 cout<<"Enter a valid choice";
 break;
 }

这篇关于在我的代码中查找错误（C ++）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！