Python中内置的type()函数可以返回一个变量的类型。可以用type()函数和运算符isinstance()进行类型判断。例如: x=10y="hello"z=[1,2,3]ifisinstance(x,int):print("x is an integer")ifisinstance(y,str):print("y is a string")ifisinstance(z,list):print("z is a list")else:print("zis not a...
list是最常见的可迭代对象,其他可迭代的对象例如 dict,set,file lines,string等 AI检测代码解析 for i in set((1,2,3)): print(i) 输出:123 import string list_num = list(string.digits) for i in list_num: # 输出偶数 if int(i)%2 == 0: print(i) 输出:02468 range range 有头无尾,e.g...
1 class str(basestring): 2 """ 3 str(object='') -> string 4 5 Return a nice string representation of the object. 6 If the argument is a string, the return value is the same object. 7 """ 8 def capitalize(self): 9 """ 首字母变大写 """ 10 """ 11 S.capitalize() -> str...
The Pythonlen()is used to get the total number of characters present in the string and check if the length of the string is 0 to identify the string is empty. Actually, thelen()function returns the length of an object. The object can be a string, a list, a tuple, or other objects ...
python编程之if/for/whil 1、python流程控制之if测试 A、python对象的特点--所有对象都支持比较操作 数字:通过相对大小进行比较 字符串:按照字典次序逐字进行比较 列表和元组:自左至右比较各部分内容 字典:对排序之后的(键、值)列表进行比较 B、python中真和假的含义...
Dim StrList() As String = {"abc", "qwe", "zxc"} Dim chkStr As String = "ABC" If Array.Find(StrList, Function(x) x.ToLower = chkStr.tolower) IsNot Nothing Then MsgBox("Item Exists") Else MsgBox("Item Not Exists") End If thanks...
In this post, we will see what is a string in Python and how to check whether a given variable is a string or not. Table of Contents [hide] How to check if a given variable is of the string type in Python? Using the isinstance() function. Using the type() function. Check if ...
# Python program to check if a string is # palindrome or not # function to check palindrome string def isPalindrome(string): rev_string = string[::-1] return string == rev_string # Main code x = "Google" if isPalindrome(x): print(x,"is a palindrome string") else: print(x,"is...
在检查一个字符串a是否等于一个数组中的字符串a时,可以使用if语句进行检查。if语句可以用来判断两个字符串是否相等。以下是一个示例代码: ```python a = "string" array =...
python one.py会输出：top-level in one.py one.py is being run directly如果你执行two.py文件，...