Python 程序：檢查字符是否為數字

用一個實例編寫一個 Python 程序來檢查字符是不是數字。

這個 python 程序允許用戶輸入任何字符。接下來，我們使用 If Else 語句來檢查用戶給定的字符是否是數字。這裡， If 語句檢查字符是否大於等於 0，小於等於 9。如果為真，則為數字。否則，它不是一個數字。

# Python Program to check character is Digit or not
ch = input("Please Enter Your Own Character : ")

if(ch >= '0' and ch <= '9'):
    print("The Given Character ", ch, "is a Digit")
else:
    print("The Given Character ", ch, "is Not a Digit")

Python 字符是數字還是不輸出

Please Enter Your Own Character : 1
The Given Character  1 is a Digit
>>> 
Please Enter Your Own Character : i
The Given Character  i is Not a Digit

在本 Python 示例中，我們使用 ASCII 值來檢查字符是否為數字。

# Python Program to check character is Digit or not
ch = input("Please Enter Your Own Character : ")

if(ord(ch) >= 48 and ord(ch) <= 57):
    print("The Given Character ", ch, "is a Digit")
else:
    print("The Given Character ", ch, "is Not a Digit")

Please Enter Your Own Character : 7
The Given Character  7 is a Digit
>>> 
Please Enter Your Own Character : @
The Given Character  @ is Not a Digit

在本例 python 代碼中，我們使用 If Else 語句中的 isdigit 字符串函數來檢查給定字符是否為數字。

# Python Program to check character is Digit or not
ch = input("Please Enter Your Own Character : ")

if(ch.isdigit()):
    print("The Given Character ", ch, "is a Digit")
else:
    print("The Given Character ", ch, "is Not a Digit")