一位数组stack[StackMaxSize],分配给两个栈S1和S2. 分配数组空间，使得对任何一个栈，当且仅当数组空间全满时才不插入。-An array of stack [StackMaxSize], assigned to the two stacks S1 and S2. The allocation of an array of space, making any stack, and only if A full array of space when not insert