python通过由行组成的文本文件进行搜索

Question

if __name__ == '__main__':
    hid = '282'
    b = (hid)+"\n"
    hidtext = [open("foo.txt").readlines()]
    r = str (b) in hidtext
    print hidtext
    print r
    print (hid)
    print b

在上面的代码中，我想搜索“hid”值，但是我在“r”上得到了false，尽管“282”确实存在

这是输出，foo是一个文本文件，编号为新行

/usr/bin/python2.7 /home/user/Dropbox/pycharm/win3.py 
[['282\n', '777\n', '418\n']] 
False 
282 
282
Process finished with exit code 0

Answer 1

移除open("foo.txt").readlines()外部的支架

if __name__ == '__main__':
    hid = '282'
    b = (hid)+"\n"
    hidtext = open("foo.txt").readlines()
    r = str (b) in hidtext
    print hidtext
    print r
    print (hid)
    print b

---

结果:

['282\n', '777\n', '418\n']
True
282
282