使用方法修改字符串的大小以及拼接字符串

name = "ada lovelace"
print(name.title())
print(name.upper())
print(name.lower())

　　方法title()以首字母大写的方式显示每个单词

       方法upper()将字符串全部改为大写

       方法lower()将字符串全部改为小写

Ada Lovelace
ADA LOVELACE
ada lovelace

　　合并字符串

first_name = "ada"
last_name = "lovelace"
full_name = first_name + " " + last_name
print(full_name)

　　

ada lovelace

　　

first_name = "ada"
last_name = "lovelace"
full_name = first_name + " " + last_name
print("Hello, " + full_name.title() + "!")

　　

Hello, Ada Lovelace!