题解 | #截断电话号码#
截断电话号码
https://www.nowcoder.com/practice/078d1abcb55648f687a78d87e4b3cb69
str1 = input()
num_list = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '-']
for i in str1:
if i in num_list and i != '#':
print(i, end = '')
else :
break
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