python - 如何在 python 3.4 中检查数组中元素的字符串

Question

假设我有以下变量...

bad_words = ['bad0', 'bad1', 'bad2']
bad_string = "This string has bad1 in it."
bad_string2 = "This string is abcbad0xyz."
good_string = "This string is good!"

查看字符串中“坏词”并仅打印出正确字符串的最佳方法是什么？

例子...

def check_words(string):
    bad_words = ['bad0', 'bad1', 'bad2']
    #this is where I need help... 
    #Return False if string contains any of the words in bad words
    #Return True if string does not contain bad words.


bad_string = "This string has bad1 in it."
good_string = "This string is good!"

#call the check_words method by sending one of the strings
valid = check_words(bad_string)    #I want this to return False

if valid:
    print("Good string!")
else:
    print("Bad string!")

#or...
valid = check_words(good_string)    #I want this to return True

if valid:
    print("Good string!")
else:
    print("Bad string!")

Answer 1

这非常简单，遍历 bad_words 并检查单词是否在 string 中，如果是则返回 False。在检查完所有 bad_words 之后，我们可以安全地返回 True。

def check_words(string):
    bad_words = ['bad0', 'bad1', 'bad2']
    for word in bad_words:
        if word in string:
            return False
    return True