var arr:Array = [0,1,2,4,8,16] var gate:int = 0; gate |= arr[1] gate |= arr[2] gate |= arr[3] trace(gate) trace(Boolean(gate&1)) trace(Boolean(gate&4))
一位数组表示多种意思～～ 与--或
原文：http://www.cnblogs.com/602147629/p/4087857.html
