Binary ``,'' is the comma operator. In scalar context it evaluates its left argument, throws that value away, then evaluates its right argument and returns that value.
Binary ``,'' is the comma operator. In scalar context it evaluates its left argument, throws that value away, then evaluates its right argument and returns that value.
二元','为逗号操作符。在标量上下文中，它运行左边的参数，然后舍弃结果，运行右边的参数然后返回值。