小写→大写，大写→小写，只保留首字母大写的三种方法

LRaby35646

于 2024-09-17 11:23:28 发布

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分类专栏：数据处理文章标签：字符串大小写转换

本文链接：https://blog.youkuaiyun.com/LiuRuiaby35646/article/details/142312735

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小写→大写

list1 = ['wo','ai','ni','zhong', 'guo']
SRT_list = []
for x in list1:
    SRT_list.append(x.upper()) # ['WO', 'AI', 'NI', 'ZHONG', 'GUO']

大写→小写

list3 = ['WO', 'AI', 'NI', 'ZHONG', 'GUO']
List = []
for j in list3:
    List.append(j.lower()) # ['wo', 'ai', 'ni', 'zhong', 'guo']

只保留首字母大写

list2 = ['WO', 'AI', 'NI', 'ZHONG', 'GUO']
LIST = []
for i in list2:
    LIST.append(i.title()) #['Wo', 'Ai', 'Ni', 'Zhong', 'Guo']