如何在python中打印行并跳过行？

Question

我想打印一行并在​​python中跳过一行

示例我有这个文本文件

line1
line2
line3
line4
line5

我希望结果像这样

line1
line3
line5

Answer 1

with open(<YOURFILE>) as myfile:
    line = myfile.readline()
    while line is not None:
        do stuff with line here
        line = myfile.readline()
        line= myfile.readline()

Answer 2

您未指定要删除的行，但：

f = open(<filename here>).read()
lines = f.split("\n")
#drop line 3
lines_for_print = lines[0:2]+lines[4:]
#drop by condition:
lines_for print = [line for line in lines if <condition here> ]

希望这会有所帮助