Python中字符串轉(zhuǎn)換大小寫的方法有三種:
s = "hello" s_upper = s.upper() print(s_upper) # 輸出:HELLO
s = "HELLO" s_lower = s.lower() print(s_lower) # 輸出:hello
s = "hello world" s_title = s.title() print(s_title) # 輸出:Hello World
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