题解 | #判断列表是否为空#
判断列表是否为空
https://www.nowcoder.com/practice/83602ea86f1e4e6ca42d5ebffff34ca8
解法一:len() my_list=[] if len(my_list)==0: print('my_list is empty!') else: print('my_list is not empty!') 解法二:两个变量== my_list=[] emptylist=[] if my_list==emptylist: print('my_list is empty!') else: print('my_list is not empty!') 解法三:用my_list=[]这个空列表作为标准 my_list=[] if not my_list: print('my_list is empty!') else: print('my_list is not empty!')