'in:True': min(timeit.repeat(lambda: in_('superstring', 'str'))), 'in:False': min(timeit.repeat(lambda: in_('superstring', 'not'))), '__contains__:True': min(timeit.repeat(lambda: contains('superstring', 'str'))), '__contains__:False': min(timeit.repeat(lambda: contains(...
print('First Input String Contains Second String? ', input_str1.__contains__(input_str2)) Output: Please enter first input string JournalDev is Nice Please enter second input string Dev First Input String Contains Second String? True You can checkout more Python string examples from our....
下边内容是关于python判断字符串(string)是否包含(contains)子字符串的方法的内容。 方法2:使用find函数实现contains的功能 s = "This be a string" if s.find("is") == -1: print "No 'is' here!" else: print "Found 'is' in the string."...
下边内容是关于python判断字符串(string)是否包含(contains)子字符串的方法的内容。 方法2:使用find函数实现contains的功能 s="This be a string"ifs.find("is")==-1:print"No 'is' here!"else:print"Found 'is' in the string." 1. 2. 3. 4. 5....
从__add__()这个方法中，我们得知Python中字符串是支持加法操作的，大家可以试一下，我们发现字符串的加法操作也就是将两个字符串连接起来。__contains__()方法用于判断某一字符串是否被另一字符串所包含，我们再试一下，如下图，既可以用__contains__()函数，也可以使用关键字 in。我们再看一个__getitem__...
As you can see, the logical value True has been returned, i.e. our first example string contains alphabetical letters. Let’s apply exactly the same Python syntax to our second string: print(any(c.isalpha()forcinmy_string2))# Check if letters are contained in string# False ...
s}".format(conversion)) 625 626 627 # returns an iterable that contains tuples of the form: 628 # (literal_text, field_name, format_spec, conversion) 629 # literal_text can be zero length 630 # field_name can be None, in which case there's no 631 # object to format and output ...
Different methods to check if a string contains another string Python string supportsinoperator. So we can use it to check if a string is part of another string or not. Theinoperator syntax is: subinstr Copy It returnsTrueif “sub” string is part of “str”, otherwise it returnsFalse. ...
Perform a string formatting operation. The format_string argument can contain literal text or replacement fields delimited by braces {}. Each replacement field contains either the numeric index of a positional argument, or the name of a keyword argument. Returns a copy of format_string where each...
实际上,String的contains方法是通过调用indexOf方法来判断的,源码如下: returnindexOf(s.toString())>-1;} 2.3 JDK原生正则匹配Pattern 通过强大的正则匹配来判断,虽然有点杀鸡用牛刀的感觉,但也不是不能用,例子如下: //包含JavaMatchermatcher1=pattern.matcher("Python, Java, Go, C++");assertTrue(matcher1....