问题描述

打字游戏出现的字母出现重复，怎么解决，星期一就要评审了

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.Collections;

namespace project_word_game
{
public partial class Form1 : Form
{
public int mark = 0;//计算用户击中字母个数
public int fault = 0;//计算用户未击中字母个数
public int intoal = 0;//计算产生的字母总数
public Form1()
{
InitializeComponent();
this.Activate();
}

    private void button1_Click(object sender, EventArgs e)
    {
        timer2.Enabled = true;
        timer1.Enabled = true;

    }

    private  void Create_lable()//通过自定义label，生成label，使其出现的坐标和颜色随机生成
    {

        this.KeyPreview = true;
        Random ra = new Random(DateTime.Now.Millisecond);
        Label lb = new Label();
        lb.Location = new Point(ra.Next(10,340),0);
        lb.Text= ((char)ra.Next(65,90)).ToString();
        lb.Font = new Font("宋体", 20);
        lb.AutoSize = true;
        lb.Height = 30;
        lb.Width = 30;
        int c1 = ra.Next(0, 256);
        int c2 = ra.Next(0, 256);
        int c3 = ra.Next(0, 256);
        lb.BackColor = Color.FromArgb(c1, c2, c3);
        panel1.Controls.Add(lb);
    }
    private void Move_label()//控制label的下降，通过自增top来实现
    {
        //Random ra = new Random(DateTime.Now.Millisecond);
        foreach (Label l in panel1.Controls)
        {
            l.Top += 8;
        }
    }
    private void timer2_Tick(object sender, EventArgs e)//控制label的移动
    {
        Move_label();
        foreach (Label l in this.panel1.Controls)
        {
            if ((l.Top + l.Height) >= this.panel1.Height && l.Visible==true)//如果用户未击中，并且label已经触及panel底部
            {
                l.Visible = false;
                fault += 1;//失误数加一
                label7.Text = fault.ToString();
                if (fault == 20)//游戏的结束点，当用户失误达到20，便提示游戏结束。
                {
                 timer2.Enabled = false;
                 timer1.Enabled = false;
                 DialogResult rt=   MessageBox.Show("游戏结束，是否重新开始？","提示",MessageBoxButtons.OKCancel);
                 if (rt == DialogResult.Cancel)//通过消息框，如果用户选取消，则结束程序
                 {
                     MessageBox.Show("谢谢您的使用！", "再见");
                     this.Close();
                 }
                 else//如果用户选确定，则表示用户愿意再玩一次游戏，则游戏界面初始化，等待用户点开始
                 {
                     mark = 0;
                     fault = 0;
                     intoal = 0;
                     label6.Text = "0";
                     label7.Text = "0";
                     label11.Text = "0";
                     foreach (Label la in panel1.Controls)
                     {
                         la.Visible = false;
                     }

                 }
                }
            }

        }

    }

    private void button2_Click(object sender, EventArgs e)
    {
        timer2.Enabled = false;
        timer1.Enabled = false;
    }

    private void Form1_KeyPress(object sender, KeyPressEventArgs e)
    {

    }

    private void Form1_Load(object sender, EventArgs e)
    {

        comboBox1.Text = "初级";

    }

    private void Form1_KeyDown(object sender, KeyEventArgs e)//用户输入和字母进行比较
    {
        string str = e.KeyCode.ToString().ToUpper();
        foreach (Label l in this.panel1.Controls)
        {
            if (l.Text == str)
            {
                l.Visible = false;
                mark += 1;
                label6.Text = mark.ToString();
            }

        }

    }

    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (comboBox1.Text == "初级")
        {
            timer1.Interval = 1500;
            timer2.Interval = 400;
        }
        if (comboBox1.Text == "中级")
        {
            timer1.Interval = 1200;
            timer2.Interval = 300;
        }
        if (comboBox1.Text == "高级")
        {
            timer1.Interval = 900;
            timer2.Interval = 200;
        }
    }

    private void button3_Click(object sender, EventArgs e)
    {
        timer1.Enabled = false;
        timer2.Enabled = false;
        label6.Text = "0";
        label7.Text = "0";
        mark = 0;
        fault = 0;
        MessageBox.Show("谢谢您的使用！","再见");
        this.Close();
    }

    private void timer1_Tick(object sender, EventArgs e)//控制label生产
    {
        Create_lable();
        intoal += 1;
        label11.Text = intoal.ToString();
    }

    private void Form1_MouseEnter(object sender, EventArgs e)
    {

    }

}

}

解决方案

label6.Text = mark.ToString();后面加上e.Handled = true;