Python編程語言中的isalnum()函數檢查給定字符串中的所有字符是否都是字母數字。
字母數字：一個字母或數字的字符
用法:
string_name.isalnum()
string_name is the name of the string
參數：isalnum()方法不帶參數
返回：
True: If all the characters are alphanumeric
False: If one or more characters are not alphanumeric
以下是isalnum()方法的Python實現
# Python program to demonstrate the use of
# isalnum() method
# here a,b and c are characters and 1,2 and 3
# are numbers
string = "abc123"
print(string.isalnum())
# here a,b and c are characters and 1,2 and 3
# are numbers but space is not a alphanumeric
# character
string = "abc 123"
print(string.isalnum()) 輸出：
True False
相關用法
注：本文由純淨天空篩選整理自Striver大神的英文原創作品 Python string | isalnum()。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。