四则运算
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 四则运算 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } public static int right = 0;//正确的题目个数 public static int mistake =0;//错误的题目个数 //随机产生的随机数0-10 private void RandomNum() { Random ran = new Random(); int n1, n2; n1 = ran.Next(0, 11); n2 = ran.Next(0, 11); textBox1.Text = n1.ToString(); textBox2.Text = n2.ToString(); textBox3.Text = ""; } public static int sum; //调换四则运算的方法 private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) { textBox3.Focus(); string str = comboBox1.SelectedItem.ToString(); RandomNum(); switch (str) { case "+": sum = int.Parse(textBox1.Text) + int.Parse(textBox2.Text); break; case "-": sum = int.Parse(textBox1.Text) - int.Parse(textBox2.Text); break; case "*": sum = int.Parse(textBox1.Text) * int.Parse(textBox2.Text); break; case "/": sum = int.Parse(textBox1.Text) / int.Parse(textBox2.Text); break; } } //题目的正确个数的题目的错误个数 private void button3_Click(object sender, EventArgs e) { textBox3.Focus(); RandomNum(); if(textBox3.Text == sum.ToString()) { right++; RandomNum(); } else { mistake++; RandomNum(); } } private void button1_Click(object sender, EventArgs e) { textBox4.Text = right.ToString(); textBox5.Text = mistake.ToString() ; } } }
求助:助教你帮我看看我的代码哪里出错了,我感觉我的思路是对的啊,但是最后正确的题数和错误的题数结果不正确。
Psp分析:
psp | Personal | Software | Process | Stages | Time |
planning | 计划 | 15(m) | |||
Estimate | 估计这个任务需要多长时间 | 1(h) | |||
Development | 开发 | 2(h) | |||
Analysis | 需求分析 | 30(m) | |||
Design Review | 设计复审 | 40(m) | |||
Design | 具体设计 | 20(m) | |||
Code review | 代码复审 | 10(m) | |||
Coding | 具体编码 | 30(m) | |||
Test | 测试 | 1(m) |