# 判断字符串是否不在字符串数组中defcheck_string_not_in_array(input_str,str_array):ifinput_strnotinstr_array:returnTrueelse:returnFalse# 测试input_str="watermelon"ifcheck_string_not_in_array(input_str,str_array):print(f"{input_str}is not in the string array.")else:print(f"{input_str}...
Python offers many ways to check if a string contains a substring. The simplest and fastest way to check whether a string contains a substring or not in Python is using the in operator, which is used as a comparison operator.
# Python program to check if a string contains the substring# using in operator# Initializing stringstring ='Hi this is STechies sites'# Use in operator with if statement# to check if string contains substringif'STechies'instring:print('String found')else:print('String not found') Output: ...
每个字符串的唯一拷贝被称为它的 intern ,并因此而得名 String Interning。 Python猫注:String Interning 一般被译为“字符串驻留”或“字符串留用”,在某些语言中可能习惯用 String Pool(字符串常量池)的概念,其实是对同一种机制的不同表述。intern 作为名词时,是“实习生、实习医生”的意思,在此可以理解成“驻...
test_str="Hello, 你好!"ifcheck_contain_chinese(test_str):print("字符串中包含中文字符")else:print("字符串中不包含中文字符") 1. 2. 3. 4. 5. 在这段代码中,我们定义了一个包含中文字符的字符串test_str,然后调用check_contain_chinese函数进行判断,如果返回True则打印“字符串中包含中文字符”,否则...
String Length To get the length of a string, use thelen()function. Example Thelen()function returns the length of a string: a ="Hello, World!" print(len(a)) Try it Yourself » Check String To check if a certain phrase or character is present in a string, we can use the keywordin...
PyString_Check PyObject_Str 是 Python C API 中的一个函数,用于获取一个对象的字符串表示形式。 这里有非常多的宏定义,可以查看pythoncore(cpython)中的宏定义 cpython中的集合 集合类型 PyListObject list PyTupleObject tuple PyDictObject dict PySetObject set 集合创建 PyList_New PyTuple_New Python C语...
How to check if the Python String is empty or not? In python, there are several ways to check if the string is empty or not. Empty strings are considered
1.使用成员操作符 in >>>s='nihao,shijie'>>>t='nihao'>>>result = tins>>>printresultTrue 2.使用string模块的find()/rfind()方法 >>>importstring>>>s='nihao,shijie'>>>t='nihao'>>>result = string.find(s,t)!=-1>>>printresultTrue>>>result = string.rfind(s,t)!=-1>>>printresult...
To check if the string contains substring from the Python list, the “list comprehension”, the “any()” method, and the iterative function “for” loop is used.