Question

import os
fname = "input1.txt"

if os.path.isfile(fname):
        f = open("input1.txt", "r")

    for row in f.readlines():
            if "logging failed" in row:
                    print "the file does say 'logging failed' in it"
            else:
                    print "the file doesn\'t say 'logging failed' in it"

我的input1.txt说记录失败测试所以如何让它注意到“测试”，这样如果文本没有任何其他字符，它应该只打印输出记录失败？

编辑：抱歉英文不好，我的意思是：如果input1.txt只有“登录失败”，那么它应该打印出'文件说出来'。如果它有任何其他字符（例如'logging faaaailed'或'logging failed1'，那么它应该打印出'它没有说记录失败'。现在它只是读取记录失败并忽略input1中的任何其他字符.TXT

Answer 1

也许我错过了什么，但为什么你不能明确地将行与字符串＆＃34;记录失败＆＃34; 进行比较？

例如。 if row == "logging failed"

Answer 2

您可以尝试以下内容：

if row.find('logging') != -1 and row.endswith('failedtest'):

Answer 3

试试这个row.count("logging failed") > 0

import os
fname = "input1.txt"

if os.path.isfile(fname):
        f = open("input1.txt", "r")

    for row in f.readlines():
            if row.count("logging failed") > 0:
                    print "the file does say 'logging failed' in it"
            else:
                    print "the file doesn\'t say 'logging failed' in it"

样本测试：

In [4]: t = "the file does say 'logging failed' in it"

In [5]: t.count('logging failed')
Out[5]: 1

Python readlines字符串问题

3 个答案: