加一个label和一个timer:t.wSecond) &."&全局变量PrivateSubTimer1_Timer()Ifcount=30Then'你要执行的语句count=0Elsecount=count+1EndIfEndSub上一年度五月一日以前的日期?有效性规则为只能输入系统日期前一年五月一日(含)以前的日期设置。填写<”
vb怎么使用定时器定时?
你说的前面意思没听懂,后面希望毫秒到是可以实现,但微秒不会。上代码:加一个label和一个timer:
Private Declare Sub GetLocalTime Lib "kernel32" (lpSystemTime As SYSTEMTIME) Private Type SYSTEMTIME wYear As Integer wMonth As Integer wDayOfWeek As Integer wDay As Integer wHour As Integer wMinute As Integer wSecond As Integer wMilliseconds As Integer End Type Private Sub Form_Load() Timer1.Interval = 1 End Sub Private Sub Timer1_Timer() Dim t As SYSTEMTIME GetLocalTime t Cls Label1.Caption = DateSerial(t.wYear, t.wMonth, t.wDay) & " " & TimeSerial(t.wHour, t.wMinute, t.wSecond) & "." & t.wMilliseconds End Sub
窗体加一个timer控件,interval属性设为60000(1分钟),代码区写以下代码DimcountAsInteger'用来记数,全局变量PrivateSubTimer1_Timer()Ifcount=30Then'你要执行的语句count=0Elsecount=count+1EndIfEndSub
上一年度五月一日以前的日期?
有效性规则为只能输入系统日期前一年五月一日(含)以前的日期设置。
表达式:“有效性规则”填写<=DateSerial(Year(Date())-1,5,1)。