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----  net代码 需要什么样的命名空间  (http://foxtable.com/bbs/dispbbs.asp?boardid=2&id=184588)

--  作者:tianhao0817
--  发布时间:2022/12/14 17:14:00
--  net代码 需要什么样的命名空间
老师麻烦看一下,下面的代码保存到全局代码里,保存不了
Public Function CreateSign(ByVal filePath As String, ByVal body As String, ByVal method As String, ByVal url As String) As String
    Dim seconds As String = (DateTime.Now - DateTime.Parse("1970-01-01 08:00:00")).TotalSeconds.ToString().Split("."c)(0)
    Dim randoms As String = New Random().[Next]().ToString("X") + New Random().[Next]().ToString("X")
    Dim s As String = String.Format("{0}" & vbLf & "{1}" & vbLf & "{2}" & vbLf & "{3}" & vbLf & "{4}" & vbLf, method, url, seconds, randoms, body)
    s = Encryption.SHA256WithRSA(filePath, WeChatKey.mch_id, s)
    Dim sign As String = String.Format("WECHATPAY2-SHA256-RSA2048 mchid=""{0}"",n",serial_no=""{2}"",timestamp=""{3}"",signature=""{4}""", WeChatKey.mch_id, randoms, WeChatKey.certnum, seconds, s)
    Return sign
End Function


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--  作者:有点蓝
--  发布时间:2022/12/14 17:26:00
--  
看源码,或者到微软msdn查询。.net命名空间成千上万个,没有人去记这个东西