计算器编程代码

//添加方法

public double add(double a,double c) {

return a+b; }

其余的你可以自己 写下就好了·都是一样的·只是符号不一样· 3个文本框 4个点击按钮 分别代表 + - * / 如果点击的+的按钮

你在+的点击事件里面 调用这个方法就好了

//添加按钮+的事件

private void btnX_1_Click(object sender, EventArgs e) {

//textbox3 是等于的值

this.textbox3.text=add(double.parse(this.textbox1.text),double.parse(this.textbox2.text)).tostring(); }

其余的按这个方法写就好了！

private void btnX_1_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_2_Click(object sender, EventArgs e) {

if (ttx_show.Text == \

{

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_3_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_4_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_5_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \

} }

private void btnX_6_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_7_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_8_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_9_Click(object sender, EventArgs e) {

if (ttx_show.Text == \

{

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_0_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_round_Click(object sender, EventArgs e) {

//小数点代码

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_bracket_left_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

private void btnX_bracket_right_Click(object sender, EventArgs e) {

if (ttx_show.Text == \ {

ttx_show.Text = \ } else {

ttx_show.Text += \ } }

#region 【退格】

private void btnX_backspace_Click(object sender, EventArgs e) {

ttx_show.Text = ttx_show.Text.Substring(0, ttx_show.Text.Length - 1);//退格 }

#endregion

#region 【等号】

private void btnX_equal_Click(object sender, EventArgs e) {

equal_fangfa(); }

#endregion

#region 【除号】

private void btnX_divided_Click(object sender, EventArgs e) {

if (ttx_show.Text != \ {

ttx_show.Text += \ } }

#endregion

#region 【乘号】

private void btnX_multiply_Click(object sender, EventArgs e)