C# 考题参考
作者：互联网
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
范围异常 年龄异常 = new 范围异常(0, 100);
范围异常 身高异常 = new 范围异常(50, 250);
private void button1_Click(object sender, EventArgs e)
{
try
{
int age = int.Parse(textBox1.Text);
int height = int.Parse(textBox2.Text);
检查(age, 年龄异常);
检查(height, 身高异常);
}
catch(范围异常 ey){
MessageBox.Show (ey.ToString());
}
}
private void 检查(int value,范围异常 ex){
if(ex.检查(value)==false)throw new 范围异常();
}
}
class 范围异常:Exception
{
int 下界;
int 上界;
public 范围异常() : base()
{
}
public 范围异常(int 下界, int 上界):base()
{
this.下界=下界;
this.上界 = 上界;
}
public override string ToString()
{
return "范围错误";
}
public bool 检查(int value)
{
if(value<下界||value>上界)
return false;
else
return true;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
try
{
A a = new A();
a.f();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
Console.ReadLine();
}
}
class A
{
public void f(){
throw new Exception();
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
try
{
double y;
y = -5.6 % 4.6;
int[] a = new int[20];
a[30] = 90;
}
catch(IndexOutOfRangeException ey){
try
{
float x = float.Parse(textBox1.Text);
float y = float.Parse(textBox2.Text);
float z = (float)Math.Sqrt(x);
textBox3.Text = z.ToString();
}
catch (FormatException ez){
MessageBox.Show("错误z:" + ez.ToString());
}
}
catch (Exception ex)
{
MessageBox.Show("错误x:" + ex.ToString());
}
}
private void button2_Click(object sender, EventArgs e)
{
try
{
float x = float.Parse(textBox1.Text);
float y = float.Parse(textBox2.Text);
float z = x / y;
textBox4.Text = z.ToString();
}
catch (Exception ex)
{
MessageBox.Show("错误:" + ex.ToString());
}
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using abc.xyz;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
A a = new A();
a.x = 9;//a是namespace ConsoleApplication1中的类A的对象
abc.A aa = new abc.A();
aa.y = 8;//aa是namespace abc中的类A的对象
abc.xyz.A aaa = new abc.xyz.A();
aaa.z = 18;//aaa是namespace abc.xyz中的类A的对象
abc.xyz.X xx = new abc.xyz.X();
xx.www = 1919;
xx.www = 10;
try{
int u = a.x / xx.www;
Console.WriteLine("haha.");
}
catch(Exception ex){
Console.WriteLine(ex.Message);
}
Console.ReadLine();
}
}
class A {
public int x;
}
class B {
}
}
namespace abc
{
namespace xyz
{
class A {
public int z;
}
class X
{
public int www;
}
}
class A
{
public int y;
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
学生 zs = new 学生();
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
zs.姓名 = textBox4.Text;
//button1.Text = zs.姓名;
textBox1.Text = zs.姓;
textBox2.Text = zs.名;
textBox3.Text = zs.字;
}
private void button2_Click(object sender, EventArgs e)
{
zs.姓名 = textBox4.Text;
textBox1.Text = zs.姓名;
}
}
class 学生
{
public string 姓;
public string 名;
public string 字;
public string 姓名
{
get
{
return "姓:"+姓+",名:"+名+",字："+字;
}
set
{
string s = value;
int 逗号位置;
逗号位置=s.IndexOf(',');
//逗号位置 = s.IndexOf("8787");
if(s.Substring(0,2)=="诸葛" || s.Substring(0,2)=="东方" )
{
姓 = s.Substring(0,2);//value的姓取出来;前两个字
名 = s.Substring(2, 逗号位置 - 2);//value的名取出来;第二字开始到半角逗号结束
}
else
{
姓 = s.Substring(0,1);//value的姓取出来;第一个字
名 = s.Substring(1, 逗号位置 - 1);//value的名取出来;第二字开始到半角逗号结束
}
字 = s.Substring(逗号位置+1);//value的字取出来;半角逗号开始到结束
}
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
男人类 tom = new 男人类("汤姆", "男", 20);
女人类 mary = new 女人类("玛丽", "女", 60);
textBox1.Text = tom.打印() + " " + tom.当膀爷();
textBox2.Text = mary.打印()+" "+ mary.生孩子();
}
}
public class 人类{
public string name;
public string sex;
public int age;
public 人类()
{
}
public 人类(string name,string sex,int age)
{
this.name = name;
this.sex = sex;
this.age = age;
}
public string 打印(){
return name+ " " +sex +" " + age.ToString();
}
}
public class 男人类:人类
{
public 男人类(string name, string sex, int age)
{
//base(name, sex, age);
base.name = name;
base.sex = sex;
base.age = age;
}
public string 当膀爷()
{
return "光膀子上街";
}
}
public class 女人类 : 人类
{
public 女人类(string name, string sex, int age)
{
base.name = name;
base.sex = sex;
base.age = age;
}
public string 生孩子() {
return "生一个孩子";
}
}
}
////////////////
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
abc x = new abc();
abc y = new abc("This is a string");
abc[] a = new abc[5];
for (int i=0;i<5;i++)
a[i] = new abc("haha");
Console.ReadLine();
}
}
class abc
{
public abc() {
Console.WriteLine ("abc");
}
public abc(string s)
{
Console.WriteLine(s);
}
}
}
///////////////
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
int i;
int x;
动物[] arr1 = new 动物[4];
for (i = 0; i < 4; i++)
{
Console.WriteLine("第" + i.ToString() + "个动物是什么? (1:狗，2：猫，3：大象，4：人）");
x = int.Parse(Console.ReadLine());
switch (x)
{
case 1:
arr1[i] = new 狗();
break;
case 2:
arr1[i] = new 猫();
break;
case 3:
arr1[i] = new 大象();
break;
case 4:
arr1[i] = new 人();
break;
default:
Console.WriteLine("输入错误");
arr1[i] = new 人();
break;
}
}
for ( i = 0; i < 4; i++)
{
arr1[i].吃();
}
Console.ReadLine();
}
}
class 动物 {
public virtual void 吃()
{
//Console.WriteLine("动物都要吃。");
}
}
class 狗 : 动物
{
public override void 吃()
{
Console.WriteLine("狗啃骨头");
}
}
class 猫 : 动物
{
public override void 吃()
{
Console.WriteLine("猫吃鱼");
}
}
class 大象 : 动物
{
public override void 吃()
{
Console.WriteLine("大象吃草或树叶");
}
}
class 人 : 动物
{
public override void 吃()
{
Console.WriteLine("人什么都吃，天上飞的没有吃过蚊子，四条腿的没有吃过板凳。");
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
C c = new C();
Console.ReadLine();
}
}
class A {
public A()
{
Console.WriteLine("A");
}
}
class B
{
public B()
{
Console.WriteLine("B");
}
}
class C : A
{
B b = new B();
public C()
{
Console.WriteLine("C");
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
三维坐标 坐标1 = new 三维坐标(float.Parse (textBox1.Text), float.Parse(textBox2.Text), float.Parse(textBox3.Text));
三维坐标 坐标2 = new 三维坐标(float.Parse(textBox4.Text), float.Parse(textBox5.Text), float.Parse(textBox6.Text));
三维坐标 坐标3 = new 三维坐标();
坐标3 = 坐标1 + 坐标2;
textBox7.Text = (坐标3.x).ToString();
textBox8.Text = (坐标3.y).ToString();
textBox9.Text = (坐标3.z).ToString ();
}
private void button2_Click(object sender, EventArgs e)
{
}
private void button3_Click(object sender, EventArgs e)
{
}
private void button4_Click(object sender, EventArgs e)
{
}
}
class 三维坐标 {
public float x,y,z;
public 三维坐标()
{
}
public 三维坐标(float x, float y, float z)
{
this.x = x;
this.y = y;
this.z = z;
}
public static 三维坐标 operator ++(三维坐标 p1)
{
return new 三维坐标(p1.x +1, p1.y + 1, p1.z + 1);
}
public static 三维坐标 operator --(三维坐标 p1)
{
return new 三维坐标(p1.x - 1, p1.y - 1, p1.z - 1);
}
public static 三维坐标 operator +(三维坐标 p1, 三维坐标 p2)
{
return new 三维坐标(p1.x + p2.x, p1.y + p2.y, p1.z + p2.z);
}
public static 三维坐标 operator -(三维坐标 p1, 三维坐标 p2)
{
return new 三维坐标(p1.x - p2.x, p1.y - p2.y, p1.z - p2.z);
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
复数 c1 = textBox1.Text;
复数 c2 = textBox2.Text;
//复数 c3 = c1 - c2;
textBox3.Text = c1.ToString();
}
}
class 复数 {
double 实部,虚部;
public 复数()
{
实部 = 0;
虚部 = 0;
}
public 复数(double 实部,double 虚部)
{
this.实部 = 实部;
this.虚部 = 虚部;
}
public override string ToString()
{
return 实部+"+"+虚部+"i";
}
public static implicit operator 复数(string 复数字符串)
{
if (复数字符串 == "")
{
复数 转换后的复数 = new 复数();
return 转换后的复数;
}
else
{
string[] 实部和虚部数字 = 复数字符串.Split('+', '-', 'i', '*');
//MessageBox.Show(实部和虚部数字[0] + " " + 实部和虚部数字[1]);
复数 转换后的复数 = new 复数(double.Parse(实部和虚部数字[0]), double.Parse(实部和虚部数字[1]));
return 转换后的复数;
}
}
}
}标签：参考,C#,Text,System,class,考题,new,using,public 来源： https://www.cnblogs.com/iamrich/p/14975086.html