本文学习自公众号 数据分析与统计学之美
1.将两个列表合并为字典，一个列表作为key，一个作为valuekey_list=['1','2','3']
value_list = ['A','B','C']
#1使用python的zip 与dict函数
dict_1 = dict(zip(key_list,value_list))
# 使用带有字典推导式的zip函数
dict_2 = {key:value for key, value in zip(key_list,value_list)}
print（dict_1）
{'1': 'A', '2': 'B', '3': 'C'}
print（dict_2）
{'1': 'A', '2': 'B', '3': 'C'}
2.根据另外一个数字列表对现列表进行排序
a = ["It","is","flying","bird","in","the","sky"] b = [5,6,1,3,2,7,4] sortlist= [word for(_,word) in sorted(zip(b,a), key = lambda x: x[0])] print(sortlist) ['flying', 'in', 'bird', 'sky', 'It', 'is', 'the']3.对字符串列表进行排序
new_list = ["zhe","shi","yi","ge","yong","lai","zi","fu","chuan","pai","xu","de"] new_list.sort() # 按照首字母顺序排序 ['chuan','de','fu','ge','lai','pai','shi','xu','yi','yong','zhe','zi'] mylist = sorted(newlist,key=len) # 按照字符数排序 ['de','fu','ge','xu','yi','zi','lai','pai','shi','zhe','yong','chuan']
