def bytes_to_human(n): symbols = ('K','M','G','T','P','E','Z','Y') prefix = {} for i,s in enumerate(symbols): prefix[s] = 1 << (i + 1) * 10 for s in reversed(symbols): if n >= prefix[s]: value = float(n) / prefix[s] return '%.1f%s' % (value,s) return '%sB' % n

python编写的储存单位转换代码（以字节(B)为单位）

def bytes(bytes): if bytes < 1024: #比特 bytes = str(round(bytes, 2)) + ' B' #字节 elif bytes >= 1024 and bytes < 1024 * 1024: bytes = str(round(bytes / 1024, 2)) + ' KB' #千字节 elif bytes >= 1024 * 1024 and bytes < 1024 * 1024 * 1024: bytes = str(round(bytes / 1024 / 1024, 2)) + ' MB' #兆字节 elif bytes >= 1024 * 1024 * 1024 and bytes < 1024 * 1024 * 1024 * 1024: bytes = str(round(bytes / 1024 / 1024 / 1024, 2)) + ' GB' #千兆字节 elif bytes >= 1024 * 1024 * 1024 * 1024 and bytes < 1024 * 1024 * 1024 * 1024 * 1024: bytes = str(round(bytes / 1024 / 1024 / 1024 / 1024, 2)) + ' TB' #太字节 elif bytes >= 1024 * 1024 * 1024 * 1024 * 1024 and bytes < 1024 * 1024 * 1024 * 1024 * 1024 * 1024: bytes = str(round(bytes / 1024 / 1024 / 1024 / 1024 / 1024, 2)) + ' PB' #拍字节 elif bytes >= 1024 * 1024 * 1024 * 1024 * 1024 * 1024 and bytes < 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 1024: bytes = str(round(bytes / 1024 / 1024 / 1024 / 1024 / 1024 /1024, 2)) + ' EB' #艾字节 return bytes if __name__ == '__main__': print('0：' + bytes(0)) print('1：' + bytes(1)) print('2：' + bytes(10)) print('3：' + bytes(100)) print('4：' + bytes(1000)) print('5：' + bytes(10000)) print('6：' + bytes(100000)) print('7：' + bytes(1000000)) print('8：' + bytes(10000000)) print('9：' + bytes(100000000)) print('10：' + bytes(1000000000)) print('11：' + bytes(10000000000)) print('12：' + bytes(100000000000)) print('13：' + bytes(1000000000000)) print('14：' + bytes(10000000000000)) print('15：' + bytes(100000000000000)) print('16：' + bytes(1000000000000000)) print('17：' + bytes(10000000000000000)) print('18：' + bytes(100000000000000000)) print('19：' + bytes(1000000000000000000)) print('20：' + bytes(10000000000000000000)) print('20：' + bytes(100000000000000000000)) print('20：' + bytes(1000000000000000000000))

测试：

"D:\Program Files\Python\Python36\python.exe" C:/Users/Jochen/PycharmProjects/mysite/bytes.py
0：0 B
1：1 B
2：10 B
3：100 B
4：1000 B
5：9.77 KB
6：97.66 KB
7：976.56 KB
8：9.54 MB
9：95.37 MB
10：953.67 MB
11：9.31 GB
12：93.13 GB
13：931.32 GB
14：9.09 TB
15：90.95 TB
16：909.49 TB
17：8.88 PB
18：88.82 PB
19：888.18 PB
20：8.67 EB
20：86.74 EB
20：867.36 EB

Process finished with exit code 0

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