python 读取文件乱码问题

f = open(r'E:\Python\liaotian.txt','r',encoding='utf-8')
f.seek(0,0)
for each_line in f:
    print(each_line)
f.close()

f = open(r'E:\百度云同步盘\云同步盘\Python\liaotian.txt','rb')
f.seek(0,0)
for each_line in f:
    print(each_line.decode('utf-8'))
f.close()

import chardet
path = r'E:\Python\liaotian.txt'
f = open(path,'rb')
data = f.read()
print(chardet.detect(data))