python_ord_函数_2021.6.5

函数ord(x)是返回字符x对应的Unicode编码
#注意看清楚是字符,不是字符串

给数字会报错

>>> ord(5)
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    ord(5)
TypeError: ord() expected string of length 1, but int found

给字符串也会报错

>>> ord('56')
Traceback (most recent call last):
  File "<pyshell#2>", line 1, in <module>
    ord('56')
TypeError: ord() expected a character, but string of length 2 found

给单字符不会报错

>>> ord('5')
53