using (FileStream filestream = new FileStream("LOGO.png", FileMode.Open))
{
byte[] bt = new byte[filestream.Length];
//调用read读取方法
filestream.Read(bt, 0, bt.Length);
var base64Str = Convert.ToBase64String(bt);
return base64Str;
}
C# 文件转Base64
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转载自www.cnblogs.com/Alex-Mercer/p/12307350.html
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