print(eachaaa_item) else: print(eachaa_item) else: print(eacha_item) else: print(each_item) #当你打完这些你一定会mmp的,容易打错就不说了,大量重复代码! def print_99(list1): #list会与全局变量冲突 for each_item in list1: if isinstance(each_item,list): print_99(each_item) #each_it...
1. 列表去重 li = [] for item in my_list: if item not in li: li.append(item) 2.集合去重 list(set(my_list)) 3. ... 【转】python 三种遍历list的方法 [转]python 三种遍历list的方法 #!/usr/bin/env python # -*- coding: utf-8 -*- if __name__ == '__main__': list ......
point2.move(5,0)print(point2.calculate_distance(point1))assertpoint2.calculate_distance(point1) == point1.calculate_distance( point2 ) point1.move(3,4)print(point1.calculate_distance(point2))print(point1.calculate_distance(point1)) 结尾处的print语句给出了以下输出: 5.04.472135954999580.0 这...
#!/usr/bin/env python #_*_coding:utf-8_*_ list3=["openatck","docker","linux","and","list","dict","set",[["openatck646646","docker47575"], for each_item in list3: if isinstance(each_item, list): for seach_item in each_item: print(seach_item) else: print(each_item) 结...
This approach is straightforward and commonly used for basic list printing tasks. my_list = [1, 2, 3, 4, 5] # Using a for loop to print each element for item in my_list: print(item) Output: 1 2 3 4 5 In this example, the for loop iterates over each element in the list ...
使用item()就有点类似于php里的foreach类似。都能把键=>值的方式遍历出来,如果纯使用for..in则只能取得每一对元素的key值 代码如下: person={'name':'lizhong','age':'26','city':'BeiJing','blog':'www.jb51.net'} for x in person: print x ...
Recommended Reading:Python f-strings. Let’s look at another example where we will ask the user to enter the string to check in the list. l1=['A','B','C','D','A','A','C']s=input('Please enter a character A-Z:\n')ifsinl1:print(f'{s}is present in the list')else:print...
In Python, lists are: Ordered - They maintain the order of elements. Mutable - Items can be changed after creation. Allow duplicates - They can contain duplicate values. Access List Elements Each element in a list is associated with a number, known as an index. The index of first item is...
nextCells.append(column) # nextCells is a list of column lists. while True: # Main program loop. print('\n\n\n\n\n') # Separate each step with newlines. currentCells = copy.deepcopy(nextCells) # Print currentCells on the screen: ...
for item in [列表、元组、字典、集合、字符等]: AI检测代码解析 doSomething 1. 示例代码如下所示: AI检测代码解析 a={1,2,3,4,5} for item in a: print(f"current item is {item}") 1. 2. 3. 输出结果如下所示: AI检测代码解析