C#实现的简单整数四则运算计算器功能示例
程序员文章站
2023-12-12 15:07:22
本文实例讲述了c#实现的简单整数四则运算计算器功能。分享给大家供大家参考,具体如下:
运行效果图如下:
具体代码如下:
using system;
us...
本文实例讲述了c#实现的简单整数四则运算计算器功能。分享给大家供大家参考,具体如下:
运行效果图如下:
具体代码如下:
using system; using system.collections.generic; using system.componentmodel; using system.data; using system.drawing; using system.text; using system.windows.forms; namespace 计算器 { public partial class form1 : form { public form1() { initializecomponent(); } public string num; public int flag;//用于判断输入的操作符 public double num1, num2; private void num0_button_click(object sender, eventargs e) { num = num + "0"; num2 = convert.todouble(num); textbox.text = num; } private void num1_button_click(object sender, eventargs e)//重点算法1 { if (textbox.text == "0") { num = "1"; textbox.text = convert.tostring(num); } else { num = num + "1"; num2 = convert.todouble(num); textbox.text = num; } } private void num2_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "2"; textbox.text = convert.tostring(num); } else { num = num + "2"; num2 = convert.todouble(num); textbox.text = num; } } private void num3_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "3"; textbox.text = convert.tostring(num); } else { num = num + "3"; num2 = convert.todouble(num); textbox.text = num; } } private void num4_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "4"; textbox.text = convert.tostring(num); } else { num = num + "4"; num2 = convert.todouble(num); textbox.text = num; } } private void num5_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "5"; textbox.text = convert.tostring(num); } else { num = num + "5"; num2 = convert.todouble(num); textbox.text = num; } } private void num6_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "6"; textbox.text = convert.tostring(num); } else { num = num + "6"; num2 = convert.todouble(num); textbox.text = num; } } private void num7_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "7"; textbox.text = convert.tostring(num); } else { num = num + "7"; num2 = convert.todouble(num); textbox.text = num; } } private void num8_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "8"; textbox.text = convert.tostring(num); } else { num = num + "8"; num2 = convert.todouble(num); textbox.text = num; } } private void num9_button_click(object sender, eventargs e) { if (textbox.text == "0") { num = "9"; textbox.text = convert.tostring(num); } else { num = num + "9"; num2 = convert.todouble(num); textbox.text = num; } } private void add_button_click(object sender, eventargs e)//重点算法2 { if (textbox.text.length > 0) { num1 = convert.todouble(textbox .text); num = ""; flag = 1; textbox.text = ""; textbox.focus(); } } private void dev_button_click(object sender, eventargs e) { if (textbox.text.length > 0) { num1 = convert.todouble(textbox.text); num = ""; flag = 2; textbox.text = ""; textbox.focus(); } } private void mul_button_click(object sender, eventargs e) { if (textbox.text.length > 0) { num1 = convert.todouble(textbox.text); num = ""; flag = 3; textbox.text = ""; textbox.focus(); } } private void chu_button_click(object sender, eventargs e) { if (textbox.text.length > 0) { num1 = convert.todouble(textbox.text); num = ""; flag = 4; // textbox.text = ""; textbox.focus(); } } private void equ_button_click(object sender, eventargs e) { switch (flag) { case 1: textbox.text = convert.tostring(num1+convert .todouble(num));//重点算法3 num2 = convert.todouble(textbox .text); break; case 2: textbox.text = convert.tostring(num1 - convert.todouble(num)); num2 = convert.todouble(textbox.text); break; case 3: textbox.text = convert.tostring(num1 * convert.todouble(num)); num2 = convert.todouble(textbox.text); break; case 4: textbox.text = convert.tostring(num1 / convert.todouble(num)); num2 = convert.todouble(textbox.text); break; } } private void re_button_click(object sender, eventargs e) { num = ""; textbox.text = "0"; } } }
ps:这里再为大家推荐几款计算工具供大家进一步参考借鉴:
在线一元函数(方程)求解计算工具:
科学计算器在线使用_高级计算器在线计算:
在线计算器_标准计算器:
更多关于c#相关内容感兴趣的读者可查看本站专题:《c#数据结构与算法教程》、《c#程序设计之线程使用技巧总结》、《c#常见控件用法教程》、《winform控件用法总结》、《c#数组操作技巧总结》及《c#面向对象程序设计入门教程》
希望本文所述对大家c#程序设计有所帮助。