vbnet日期相差 vbs时间差

VB.NET 如何计算时间差

使用datediff函数

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textbox3.text=datediff("d","textbox1.text","textbox2.text")

说明一下：

“d”表示“天”

还可以用“y”,"m","d","h","n","s"

分别表示“年”“月”“日”“时”“分”“秒”

Public Class Form1

Private Past As Date

Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

Past = Now

IO.File.AppendAllText("test.txt", Past.ToString, System.Text.Encoding.Default)

End Sub

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

Dim Now1 As Date = CDate(IO.File.ReadAllText("test.txt", System.Text.Encoding.Default))

Dim Now2 As Date = Now

MsgBox("从" Now1.ToString "到" Now2.ToString "经过了" CStr(CDate((Now2 - Now1).ToString)))

End Sub

实际情况修改下。

End Class

function getTime2Time($time1, $time2)

{

var time1 = arguments[0], time2 = arguments[1];

time1 = Date.parse(time1)/1000;

time2 = Date.parse(time2)/1000;

var time_ = time1 - time2;

return (time_/(3600*24));

}

document.write(getTime2Time('2016-08-02', '2016-07-02'));

直接用两个日期相减，返回一个timespan实例，它的Days属性就是天数。

dim d1 as datetime, d2 as datetime

dim days as integer

d1 = DateTime.Today.AddDays(-1)

d2 = DateTime.Today

days = (d2 - d1).Days

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