ord () char () ASCII code conversion variables

python often get some string, but when we need to be calculated first convert it to an integer.

Because I just returned from microcontroller programming to python, a soft spot for the ASCII code, so tell us about the ASCII conversion functions corresponding characters.

 

the ord () function is used to return a single character ascii value (0-255). E.g:

>>> ord('d')
100
>>> ord('5')
53

 

Conversely, CHR () function is an input an integer [0,255] ascii Returns the corresponding symbol, for example:

CHR >>> (100)
'D'
>>> CHR (53 is)
'. 5'
The following presents a conversion code for a character string:

print("hello i am bob")
a=5;b=2
c=a//b
c='8'
c=ord(c)
print("%x"%(c))

The results are as follows:

hello i am bob
38

Here in the sixth line indicates hexadecimal% x, '8' corresponding to the ASCII code 0x38