web信息管理课程（3）:ASP.NET编写简单的加减法计算器

控件设置

拖动textbutton控件，用于显示

拖动Button控件，组成数字和符号键盘，

添加好后可以手动拖动控件调整大小，效果如下：

form标签源码为：

1

2

3

4

5

6

7

8

9

10

11

12

编写计算代码

public partial class WebForm1 : System.Web.UI.Page { static string num1 = "0", num2 = "0", total = "", sign = ""; // 数字1按钮 protected void btnone_Click(object sender, EventArgs e) { total += "1"; txtDisplay.Text = total; } // 数字2按钮 protected void btnTwo_Click(object sender, EventArgs e) { total += "2"; txtDisplay.Text = total; } // 数字3 按钮 protected void btnThree_Click(object sender, EventArgs e) { total += "3"; txtDisplay.Text = total; } // 加法按钮 protected void btnAdd_Click(object sender, EventArgs e) { if (sign.Length == 1) { Count(); num1 = txtDisplay.Text; sign = "+"; } else { num1 = txtDisplay.Text; txtDisplay.Text = ""; total = ""; sign = "+"; } } //减法按钮 protected void btnSubtract_Click(object sender, EventArgs e) { if (sign.Length == 1) { Count(); num1 = txtDisplay.Text; sign = "-"; } else { num1 = txtDisplay.Text; txtDisplay.Text = ""; total = ""; sign = "-"; } } // 等于按钮 protected void btnEqual_Click(object sender, EventArgs e) { Count(); } // 函数定义 protected void Count() { num2 = txtDisplay.Text; if (num2 == "") { num2 = "0"; } switch (sign) { case "+": txtDisplay.Text = (int.Parse(num1) + int.Parse(num2)).ToString(); num1 = "0"; num2 = "0"; total = ""; sign = ""; break; case "-": txtDisplay.Text = (int.Parse(num1) - int.Parse(num2)).ToString(); num1 = "0"; num2 = "0"; total = ""; sign = ""; break; } }

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

测试

ASP ASP.NET

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。