C#操作1-5
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace 考试认证第一题猜和差积上 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } int conut = 0; private void button1_Click(object sender, EventArgs e) { //double sum = 0; double input1 = Convert.ToDouble(this.tBinput1.Text.ToString()); double input2 = Convert.ToDouble(this.tBinput2.Text.ToString()); tBcomputer1.Text =((double)input1 + (double)input2).ToString(); tBcomputer2.Text = ((double)input1 - (double)input2).ToString(); tBcomputer3.Text = ((double)input1 * (double)input2).ToString(); tBcomputer4.Text = ((double)input1 / (double)input2).ToString(); if (tBuser1.Text.ToString() == "" || tBuser2.Text.ToString() == "" || tBuser3.Text.ToString() == "" || tBuser4.Text.ToString() == "") { MessageBox.Show("请输入完整！！！！"); } double user1 = Convert.ToDouble(this.tBuser1.Text.ToString()); double user2 = Convert.ToDouble(this.tBuser2.Text.ToString()); double user3 = Convert.ToDouble(this.tBuser3.Text.ToString()); double user4 = Convert.ToDouble(this.tBuser4.Text.ToString()); if (tBuser1.Text.ToString() == this.tBcomputer1.Text) conut++; if (tBuser2.Text.ToString() == tBcomputer2.Text) conut++; if (tBuser3.Text.ToString() == tBcomputer3.Text) conut++; if (tBuser4.Text.ToString() == tBcomputer4.Text) conut++; //tBuser1.Text = ((double)input1 + (double)input2).ToString(); this.tBjishu.Text = conut.ToString (); }} }
}
}
第二题用菜单控制加减乘除
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace 第二题用菜单控制加减乘除 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void TStemjia_Click(object sender, EventArgs e) { double text1 = Convert.ToDouble(this.tBnumber1.Text.ToString()); double text2 = Convert.ToDouble(this.tBnuber2.Text.ToString()); double he = text1 + text2; MessageBox.Show(he.ToString ()); } private void TStemjian_Click(object sender, EventArgs e) { double text1 = Convert.ToDouble(this.tBnumber1.Text.ToString()); double text2 = Convert.ToDouble(this.tBnuber2.Text.ToString()); double cha = text1 - text2; MessageBox.Show(cha.ToString()); } private void TStemcheng_Click(object sender, EventArgs e) { double text1 = Convert.ToDouble(this.tBnumber1.Text.ToString()); double text2 = Convert.ToDouble(this.tBnuber2.Text.ToString()); double ji = text1 * text2; MessageBox.Show(ji.ToString()); } private void TStemchu_Click(object sender, EventArgs e) { double text1 = Convert.ToDouble(this.tBnumber1.Text.ToString()); double text2 = Convert.ToDouble(this.tBnuber2.Text.ToString()); double shang = text1 / text2; MessageBox.Show(shang.ToString()); } } }
第三题IO流读写文件
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; using System.IO; namespace WindowsFormsApplication7 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } string source = ""; string target = ""; //private void button1_Click(object sender, EventArgs e) //{ // OpenFileDialog dlg = new OpenFileDialog(); // dlg.Filter = "文本文件|*.txt"; // DialogResult result = dlg.ShowDialog(); // if (result == DialogResult.OK) // { // this.txtSource.Text = dlg.FileName; // StreamReader sr = new StreamReader(this.txtSource.Text); // source = sr.ReadToEnd(); // sr.Close(); // MessageBox.Show("读取数据成功！"); // } //} //private void button2_Click(object sender, EventArgs e) //{ // OpenFileDialog dlg = new OpenFileDialog(); // dlg.Filter = "文本文件|*.txt"; // DialogResult result = dlg.ShowDialog(); // if (result == DialogResult.OK) // { // this.txtTarget.Text = dlg.FileName; // StreamWriter sw = new StreamWriter(this.txtTarget.Text); // sw.Write(source); // sw.Close(); // MessageBox.Show("拷贝数据成功！"); // } //} private void 读取源文件ToolStripMenuItem_Click(object sender, EventArgs e) { OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "文本文件|*.txt"; DialogResult result = dlg.ShowDialog(); if (result == DialogResult.OK) { this.txtSource.Text = dlg.FileName; StreamReader sr = new StreamReader(this.txtSource.Text); source = sr.ReadToEnd(); sr.Close(); MessageBox.Show("读取数据成功！"); } } private void 复制到目标文件ToolStripMenuItem_Click(object sender, EventArgs e) { OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "文本文件|*.txt"; DialogResult result = dlg.ShowDialog(); if (result == DialogResult.OK) { this.txtTarget.Text = dlg.FileName; StreamWriter sw = new StreamWriter(this.txtTarget.Text); sw.Write(source); sw.Close(); MessageBox.Show("拷贝数据成功！"); } } } }
第四题TestNameSpace
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace FirstNameSpace { //嵌套的名称空间 namespace SecondNameSpace { public class SecondTest { public void SecondMethod() { Console.WriteLine("您现在调用的是：SecondNameSpace空间下的类的方法"); } } } public class FirstTest { public void FirstMethod() { Console.WriteLine("您现在调用的是：FirstNameSpace空间下的类的方法"); } } //用于测试的类 class Program { static void Main(string[] args) { //测试调用第一个命名空间下的类的方法 FirstNameSpace.FirstTest first = new FirstNameSpace.FirstTest(); first.FirstMethod(); //测试调用嵌套命名空间下的类的方法 FirstNameSpace.SecondNameSpace.SecondTest second = new FirstNameSpace.SecondNameSpace.SecondTest(); second.SecondMethod(); } } }
第五题Person人员类
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace 第五题 { public class Person { public Person() { } public Person(string name, int age, string sex) { this.name = name; this.age = age; this.sex = sex; } string name; public string Name { get { return name; } set { name = value; } } int age; public int Age { get { return age; } set { age = value; } } string sex; public string Sex { get { return sex; } set { sex = value; } } } } using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace 第五题 { class Student:Person { public Student() { } public Student(float c1, float c2, float c3, float c4, float c5) { this.Subject1_Score = c1; this.Subject2_Score = c2; this.Subject3_Score = c3; this.Subject4_Score = c4; this.Subject5_Score = c5; } public Student(string stuName, int stuAge, string stuSex, float c1, float c2, float c3, float c4, float c5) : base(stuName, stuAge, stuSex) { this.Subject1_Score = c1; this.Subject2_Score = c2; this.Subject3_Score = c3; this.Subject4_Score = c4; this.Subject5_Score = c5; } //第一门课成绩 float Subject1_Score; public float Subject1_Score1 { get { return Subject1_Score; } set { Subject1_Score = value; } } //第一门课成绩 float Subject2_Score; public float Subject2_Score1 { get { return Subject2_Score; } set { Subject2_Score = value; } } //第一门课成绩 float Subject3_Score; public float Subject3_Score1 { get { return Subject3_Score; } set { Subject3_Score = value; } } //第一门课成绩 float Subject4_Score; public float Subject4_Score1 { get { return Subject4_Score; } set { Subject4_Score = value; } } //第一门课成绩 float Subject5_Score; public float Subject5_Score1 { get { return Subject5_Score; } set { Subject5_Score = value; } } //计算某个学员五门课程平均分 public float GetAvgScore() { return (this.Subject1_Score + this.Subject2_Score +this.Subject3_Score +this.Subject4_Score + this.Subject5_Score)/5; } } } using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace 第五题 { class Program { static void Main(string[] args) { // Student stu1 = new Student( //测试 Student student = new Student("张三", 8, "男", 4, 6, 8, 2, 10); float stuAvg = student.GetAvgScore(); Console.WriteLine("张三的平均成绩是：" + stuAvg.ToString()); } } }
