国际单位制(SI):
1、1KB=1024B;1MB=1024KB=1024×1024B。
2、1B(byte,字节)=8bit;
3、1KB(Kilobyte,千字节)=1024B=2^10B;
4、1MB(Megabyte,兆字节,百万字节,简称“兆”)=1024KB=2^20B。
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