Python报错:unsupported operand type(s) for +: 'builtin_function_or_method' and 'int'报错
原来代码:num=eval(input())n=[0,0,0,0,0,0,0,0,0,0]whilenum!=0:n[num%10]=1num=num//10foriinrange(len(n)):if(n[i]):sum=sum+iprint(sum)执行结果:TypeErrorTraceback(mostrecentcalllast)in6foriinrange(len(n)):7if(n[i