我遇到了一个问题:怎样才能扭转数为整数,而不是作为一个字符串?任何人都可以请帮我找出答案。
I came across a question "How can one reverse a number as an integer and not as a string?" Could anyone please help me to find out the answer.
这应该做到这一点:
int n = 12345;
int left = n;
int rev = 0;
while(left>0)
{
r = left % 10;
rev = rev * 10 + r;
left = left / 10; //left = Math.floor(left / 10);
}
Console.WriteLine(rev);