会python真的可以为所欲为0(回)
379天前
这里还有人吗1(回)
564天前这里还有人吗0(回)
564天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
789天前到处都是羊，不想上班0(回)
869天前
鸽子
0(回)
873天前class StreamHasher(): |
"""哈希摘要生成器""" |
def __init__(self, alg='md5', size=4096): |
self.size = size |
alg = alg.lower() |
self.hasher = getattr(__import__('hashlib'), alg.lower())() |
def __call__(self, stream): |
return self.to_digest(stream) |
def to_digest(self, stream): |
"""生成十六进制形式的摘要""" |
for buf in iter(lambda: stream.read(self.size), b''): |
self.hasher.update(buf) |
return self.hasher.hexdigest() |
def main(): |
"""主函数""" |
hasher1 = StreamHasher() |
with open('Python-3.7.6.tgz', 'rb') as stream: |
print(hasher1.to_digest(stream)) |
hasher2 = StreamHasher('sha1') |
with open('Python-3.7.6.tgz', 'rb') as stream: |
print(hasher2(stream)) |
if __name__ == '__main__': |
main() |
