用VB编写程序,求S=1!+2!+3!+4!+5!+6!+7!+8!,并在窗体中输入S的值
来源:百度知道 编辑:UC知道 时间:2024/06/18 05:10:20
Option Explicit
Option Base 1 ' 数组下标从1开始
Private Declare Function QueryPerformanceCounter Lib "kernel32" (lpPerformanceCount As Currency) As Long
Private Declare Function QueryPerformanceFrequency Lib "kernel32" (lpFrequency As Currency) As Long
' By multiple1902
' 2007.7.17
' QQ: 395273243
Private Sub command_solution_docalc_Click()
If Not IsNumeric(input_problem_n.Text) Then
txtOutput.Text = "输入无效:" & input_problem_n.Text
Exit Sub
End If
&