C#第十四节课
函数的调用
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace hanshu
{
class Program
{
//传值:四种方式
//1.没有返回值,没有输入值
//2.有返回值,没有输入值
//3.没有返回值,有输入值
//4.有返回值,有输入值
//传址
//(static/public) 返回类型 函数名 (参数类型,参数名)
//没有返回值,没有输入值
/// <summary>
/// 累加求和,没有输入值,没有返回值
/// </summary>
public void Leijia()
{
Console.Write("请输入一个正整数");
int a = int.Parse(Console.ReadLine());
int sum = 0;
for (int i = 1; i <= a; i++)
{
sum += i;
}
Console.WriteLine(sum);
}
//有输入值,没有返回值
/// <summary>
/// 累加求和,有输入值,没有返回值
/// </summary>
/// <param name="a"></param>
public void Leijia(int a)
{
int sum = 0;
for (int i = 1; i <= a; i++)
{
sum += i;
}
Console.WriteLine(sum);
}
/// <summary>
/// 累加求和,没有输入值,只有返回值(int)
/// </summary>
/// <returns></returns>
public int Leijia1()
{
Console.Write("请输入一个正整数");
int a = int.Parse(Console.ReadLine());
int sum = 0;
for (int i = 1; i <= a; i++)
{
sum += i;
}
return sum;
}
/// <summary>
/// 累加求和,有输入值(int),有返回值(int)
/// </summary>
/// <param name="a"></param>
/// <returns></returns>
public int Leijia1(int a)
{
int sum = 0;
for (int i = 1; i <= a; i++)
{
sum += i;
}
return sum;
}
static void Main(string[] args)
{
Program pp = new Program();
//Console.Write("请输入一个正整数");
//int a = int.Parse(Console.ReadLine());
//pp.Leijia(a);
//pp.Leijia();
//pp.Leijia();
//int sum = pp.Leijia1();
//Console.WriteLine(sum);
//int sum=pp.Leijia1(6);
//Console.WriteLine(sum);
lei hanshu=new lei();
hanshu.Leijia();
haha heng = new haha();
heng.hehe();
Console.ReadLine();
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace hanshu
{
class lei
{
public void Leijia()
{
Console.WriteLine("告诉我我成功了!!!!");
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace hanshu
{
class haha
{
public void hehe()
{
Console.WriteLine("再告诉我我成功了!!!!");
}
}
}