php 什么是 python 等价的 strpos($elem,"text") !== false)
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时间：2020-08-25 12:21:59 来源:igfitidea点击:
What is the python equivalent of strpos($elem,"text") !== false)
提问by Cosco Tech
What is the python equivalent of:
什么是 python 等价物：
if (strpos($elem,"text") !== false) {
// do_something;
}
回答by xdazz
returns -1 when not found:
未找到时返回 -1：
pos = haystack.find(needle)
pos = haystack.find(needle, offset)
raises ValueError when not found:
未找到时引发 ValueError：
pos = haystack.index(needle)
pos = haystack.index(needle, offset)
To simply test if a substring is in a string, use:
要简单地测试子字符串是否在字符串中，请使用：
needle in haystack
which is equivalent to the following PHP:
这相当于以下 PHP：
strpos(haystack, needle) !== FALSE
回答by Javier Provecho Fernández
if elem.find("text") != -1:
do_something
回答by Pedro Castineiras
Is python is really pretty that code using "in":
python真的很漂亮，使用“in”的代码：
in_word = 'word'
sentence = 'I am a sentence that include word'
if in_word in sentence:
print(sentence + 'include:' + word)
print('%s include:%s' % (sentence, word))
last 2 prints do the same, you choose.
最后 2 个打印做同样的，你选择。
