python 中如何删除行首的空格或者tab

 

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(base) root@PC1:/home/test3# ls
a.txt  test.py
(base) root@PC1:/home/test3# cat a.txt        ## 测试数据
ddd ff ff
   jkj jj
        dffffffgg
        dgfggggg
k fff
  iyyee
(base) root@PC1:/home/test3# cat test.py      ## 测试程序
#!/usr/bin/python

in_file = open("a.txt", "r")
out_file = open("result.txt", "w")

for i in in_file:
    i = i.strip()
    out_file.write(i + "\n")

in_file.close()
out_file.close()
(base) root@PC1:/home/test3# python test.py     ## 执行程序
(base) root@PC1:/home/test3# ls
a.txt  result.txt  test.py
(base) root@PC1:/home/test3# cat result.txt     ## 程序运行结果
ddd ff ff
jkj jj
dffffffgg
dgfggggg
k fff
iyyee