Python 字符串 | isalnum()

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字母數字字母或數字字符

語法:

string_name.isalnum ()
string_name 是字符串的名稱

參數: isalnum () 方法不帶參數

返回:

真:如果所有字符都是字母數字
假:如果一個或更多字符不是字母數字

下面是isalnum Python中的()方法。

#Python程序演示用法
#
isalnum () 方法

< br> # 這裡 a、b 和 c 是字符,1,2 和 3
# 是數字

string = "abc123"

print (string.isalnum ())


# 這裡 a、b 和 c 是字符,1,2 和 3
# 是數字,但空格不是字母數字
# 字符

string = "abc 123"

print (string.isalnum ())

輸出:

真假

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