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C# 字符串string和内存流MemoryStream及比特数组byte[]之间相互转换

2024-03-18 08:06:04 365

定义string变量为str,内存流变量为ms,比特数组为bt

1.字符串转比特数组

(1)byte[]bt=System.Text.Encoding.Default.GetBytes("字符串");

(2)byte[]bt=Convert.FromBase64String("字符串");

2.字符串转流

(1)MemoryStreamms=newMemoryStream(System.Text.Encoding.Default.GetBytes("字符串"));

(2)MemoryStreamms=newMemoryStream(Convert.FromBase64String("字符串"));

3.流转比特数组

(1)byte[]bt=ms.ToArray();

(2)MemoryStreamms=newMemoryStream();ms.Write(bt,0,ms.Length);

4.流转字符串

(1)stringstr=Convert.ToBase64String(ms.ToArray());

(2)stringstr=System.Text.Encoding.Default.GetString(ms.ToArray());

5.比特数组转字符串

(1)stringstr=System.Text.Encoding.Default.GetString(bt);

(2)stringstr=Convert.ToBase64String(bt);

6.比特数组转流

(1)MemoryStreamms=newMemoryStream(bt);

(2)MemoryStreamms=newMemoryStream();ms.Read(bt,0,bt.Length);

总结：可以看出byte[]在字符串string和流MemoryStream之间转换起到过渡的作用，string和MemoryStream转换都要先转换成byte[]。