用python定义一个函数

Question

This function receives as input a string which may contain letters, digits or special symbols.The function should return the sum of adding the digits in the string.

An example addDigitsInString('a12bcd3') should return 6

Answer 1

#! /usr/bin/env python
# coding: UTF-8
# python3.3 

def func(test_str):
'''deal with the str'''
standard_list = []
for i in range(10):
standard_list.append(str(i))
sum = 0
for str_ in test_str:
if str_ in standard_list:
sum = sum + int(str_)
return sum

if __name__ == '__main__':
test_str = 'da1asda5ad3ad2'
value = func(test_str)
print(value)