字符串中有列表如何把列表提取出來?
file = ['[1,2,3],[4,5,6],[7,8,9]'] data = file[0] number = [] alist = [] count = 0 i = 0 ch ...
file = ['[1,2,3],[4,5,6],[7,8,9]'] data = file[0] number = [] alist = [] count = 0 i = 0 ch ...
列表拷貝與列表推導式結合,獲得拆分 ...
Python : 3.7.0 OS : Ubuntu 18.04.1 LTS IDE : PyCharm 2018.2.4 Conda : 4.5.11 typesetting ...
a = {"name":'qiliyan','sex':'man'} print(tuple(a.keys())) #('name', 'sex') print(tuple(a.values() ...
tList = [ ['abc', '123'], ['def', '456'] , ['ghi', '789"'] ]for each in tList: if each[0] == 'ab ...
1、永久排序 2、臨時排序 ...
python的list類中沒有現成的方法可以查找列表中是不是有指定元素。但是可以使用以下方法進行查找: ...