用visualstudio制作的簡單的計算器

1、.首先利用 visual studio里面的 button 和 textbox 模塊建立上圖模塊。然后就是編寫程序：該程序最重要的是要理解清楚計算器的運算邏輯。publicpartialclassForm1 :Formstringa, b, q, ac;intc = 0, d = 0, n = 0, p = 0, m = 0;doubletemp1 = -1;intpos = 0;publicForm1()1/14.InitializeComponent();privatevoid textBox1_TextChanged(objectsender,EventArgs e)publicvoid

2、 addNum(intnum)textBox1.Text = textBox1.Text +num.ToString();if(c > 0)/管¨1理¤¨a加¨?減?乘?除y運?算?textBox1.Text ="" ;2/14.a = num.ToString();b = b + a;textBox1.Text = b;privatevoid button1_Click(objectsender,EventArgs e)addNum(7);/ 向¨° 顯 ?示o?屏¨加¨?字á

3、?n+;3/14.privatevoid button2_Click(objectsender,EventArgs e)addNum(8);privatevoid button3_Click(objectsender,EventArgs e)addNum(9);4/14.privatevoid button5_Click(objectsender,EventArgs e)addNum(4);privatevoid button6_Click(objectsender,EventArgs e)addNum(5);privatevoid button7_Click(objectsender,Eve

4、ntArgs e)addNum(6);5/14.privatevoid button9_Click(objectsender,EventArgs e)addNum(1);privatevoid button10_Click(objectsender,EventArgs e)addNum(2);privatevoid button11_Click(objectsender,EventArgs e)addNum(3);privatevoid button14_Click(objectsender,EventArgs e)6/14.addNum(0);privatevoid button15_Cli

5、ck(objectsender,EventArgs e)if(p=0)textBox1.Text = textBox1.Text +"." ; /加¨?上|? 小?數(shù)oy點ì?p+;m+;if(c > 0)/管 ¨1理¤¨a加¨?減 ?乘?除y運 ?算 ?b = b +"." ;7/14.privatevoid button4_Click(objectsender,EventArgs e)pos = 1;temp1 =Convert .ToDouble (textBox1.Text);te

6、xtBox1.Text =temp1+"+" ;d+;c+;p = 0;8/14.privatevoid button8_Click(objectsender,EventArgs e)pos = 2;temp1 =Convert .ToDouble(textBox1.Text);textBox1.Text = temp1 +"-" ;c+; p = 0;privatevoid button12_Click(objectsender,EventArgs e)pos = 3;temp1 =Convert .ToDouble(textBox1.Text);te

7、xtBox1.Text = temp1 +"*" ;c+; p = 0;9/14.privatevoid button16_Click(objectsender,EventArgs e)pos = 4;temp1 =Convert .ToDouble(textBox1.Text);textBox1.Text = temp1 +"/" ;c+; p = 0;privatevoid button13_Click(objectsender,EventArgs e)doubletemp2 =Convert .ToDouble(b);10/14.switch(pos)case 1:textBox1.Text = (temp1 +temp2).ToString();break ;case 2:textBox1.Text = (temp1 -temp2).ToString();break ;case 3:textBox1.Text = (temp1 *temp2).ToString();break ;case 4:textBox1.Text = (temp1 /temp2).ToString();break ;11/14.privatevoid button17_Click(objectsender,EventArgs e)textBo