python 整齐输出与编码读写

# -*- coding:utf-8 -*-
# Author:mologa

for x in range(1,11):
    print(repr(x).rjust(2),repr(x*x).rjust(3),repr(x**3).ljust(4))
#rjust(n) 表示的是以从左往右边第n为对齐；反之ljust(n)

for x in range(1,11):
    print('{0:2d}{1:5d}{2:7d}'.format(x,x*x,x**3))

输出：

F:\Python35\python.exe F:/mologa-workspace/8th.py
 1   1 1
 2   4 8
 3   9 27
 4  16 64
 5  25 125
 6  36 216
 7  49 343
 8  64 512
 9  81 729
10 100 1000
 1    1      1
 2    4      8
 3    9     27
 4   16     64
 5   25    125
 6   36    216
 7   49    343
 8   64    512
 9   81    729
10  100   1000
hello word!

Process finished with exit code 0

--

f = open("F:/mologa-workspace/buyss.txt", "wb")
f.write("hello word!".encode('utf-8'))
f.close()

with open("F:/mologa-workspace/buyss.txt", "rb") as f:
    data =f.read()
    text = data.decode('utf-8')
    print(text)
    f.close()