Question

How to check if there is only one time zero in a string with Python

Answer 1

def OnlyOneZero( str) :
    count = 0
    for ch in list(str) :
        if (ch == '0') :
            count += 1
    return count == 1
        
s1 = "294098"
print("yes" if OnlyOneZero(s1) else "no")

s2 = "47034099"
print("yes" if OnlyOneZero(s2) else "no")



'''
run:

yes
no

'''

 

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