def getnum(str):
n=len(str)
s=""
for i in range(n):
ss=str[i]
if ss.isdigit():
s=s+ss
return s
微信扫一扫
def getnum(str):
n=len(str)
s=""
for i in range(n):
ss=str[i]
if ss.isdigit():
s=s+ss
return s
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