delphi 最简单的升级下载代码
user idhttp;
var
Stream: TMemoryStream;
begin
try
try
Stream := TMemoryStream.Create;
IdHTTP1.Get('http://dww.no-ip.org/simplex/spw.exe', Stream);
a := IdHTTP1.Response.ContentLength;
RenameFile('spw.exe', 'spw.old');
Stream.SaveToFile('spw.exe');
finally
Stream.Free;
IdHTTP1.Disconnect;
end;
except
RenameFile('spw.old', 'spw.exe');
end;
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