对23个button控件和4个radiobutton控件生成对应的事件，编写代码
public partial class MainForm : Form {
public MainForm() {
InitializeComponent(); }
char oper = '\\0'; double num1 = 0; double num2 = 0;
bool isSecond = false; bool isDone = false; int x;
private void btnEqual_Click(object sender, EventArgs e) {
SetBtnFun(char.Parse(((Button)sender).Text)); }
private void MainForm_KeyPress(object sender,
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KeyPressEventArgs e) {
SetBtnFun(e.KeyChar); }
void SetBtnFun(char c) {
if (char.IsDigit(c)) {
if (isSecond || isDone) { lblResult.Text = \; isSecond = false; isDone = false; }
string s = lblResult.Text + c.ToString(); s = double.Parse(s).ToString();
lblResult.Text = s; }
else if (c == '+' || c == '-' || c == '*' || c == '/') {
num1 = double.Parse(lblResult.Text); oper = c;
isSecond = true; }
else if (c == '=') {
num2 = double.Parse(lblResult.Text); double result = 0; switch (oper) {
case '+':
result = num1 + num2; break; case '-':
result = num1 - num2; break; case '*':
result = num1 * num2; break; case '/':
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result = num1 / num2; break; }
lblResult.Text = result.ToString(); num1 = result; isSecond = false; isDone = true; }
else if (c == '.') {
if (lblResult.Text.IndexOf(\) == -1) {
lblResult.Text += \; } }
x = int.Parse(lblResult.Text); }
private void rdoShiliu_CheckedChanged_1(object sender, EventArgs e) {
this.btnA.Enabled = true; this.btnB.Enabled = true; this.btnC.Enabled = true; this.btnD.Enabled = true; this.btnE.Enabled = true; this.btnF.Enabled = true; this.btn2.Enabled = true; this.btn3.Enabled = true; this.btn4.Enabled = true; this.btn5.Enabled = true; this.btn6.Enabled = true; this.btn7.Enabled = true; this.btn8.Enabled = true; this.btn9.Enabled = true;
lblResult.Text = Convert.ToString(x, 16); }
private void rdoShi_CheckedChanged_1(object sender, EventArgs e) {
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this.btnA.Enabled = false; this.btnB.Enabled = false; this.btnC.Enabled = false; this.btnD.Enabled = false; this.btnE.Enabled = false; this.btnF.Enabled = false; this.btn2.Enabled = true; this.btn3.Enabled = true; this.btn4.Enabled = true; this.btn5.Enabled = true; this.btn6.Enabled = true; this.btn7.Enabled = true; this.btn8.Enabled = true; this.btn9.Enabled = true;
lblResult.Text = Convert.ToString(x, 10); }
private void rdoBa_CheckedChanged_1(object sender, EventArgs e) {
this.btnA.Enabled = false; this.btnB.Enabled = false; this.btnC.Enabled = false; this.btnD.Enabled = false; this.btnE.Enabled = false; this.btnF.Enabled = false; this.btn2.Enabled = true; this.btn3.Enabled = true; this.btn4.Enabled = true; this.btn5.Enabled = true; this.btn6.Enabled = true; this.btn7.Enabled = true; this.btn8.Enabled = false; this.btn9.Enabled = false;
lblResult.Text = Convert.ToString(x, 8); }
private void rdoEr_CheckedChanged_1(object sender, EventArgs e) {
this.btnA.Enabled = false; this.btnB.Enabled = false;
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this.btnC.Enabled = false; this.btnD.Enabled = false; this.btnE.Enabled = false; this.btnF.Enabled = false; this.btn2.Enabled = false; this.btn3.Enabled = false; this.btn4.Enabled = false; this.btn5.Enabled = false; this.btn6.Enabled = false; this.btn7.Enabled = false; this.btn8.Enabled = false; this.btn9.Enabled = false;
lblResult.Text = Convert.ToString(x, 2); }
private void btnClear_Click(object sender, EventArgs e) {
this.btnA.Enabled = true; this.btnB.Enabled = true; this.btnC.Enabled = true; this.btnD.Enabled = true; this.btnE.Enabled = true; this.btnF.Enabled = true; this.btn2.Enabled = true; this.btn3.Enabled = true; this.btn4.Enabled = true; this.btn5.Enabled = true; this.btn6.Enabled = true; this.btn7.Enabled = true; this.btn8.Enabled = true; this.btn9.Enabled = true; lblResult.Text = \; }
}
项目演示
输入一个数12，四种进制运行结果；
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