请在O(n)时间内找出一个线性表内第二大的数。而且只能从左到右遍历一遍。(本题选自Microsoft面试真题)，时间在20sm内-In the O (n) time to find a linear form the second largest number. And can only be traversed from left to right again. (The title taken from Microsoft interview dependent on), the time within the 20sm ...