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!