问题
chan怎么答
chan关闭前chanbufferchantruechanbufferchanchannelboolfalsechanpanic举例
1. 写已经关闭的 chan
send on closed channel2. 读已经关闭的 chan
多问一句
chanpanicc.closed != 0"send on closed channel"chanc.closed != 0 && c.qcount == 0eptypedmemclrchanchanchan关闭前chanbufferchantruechanbufferchanchannelboolfalsechanpanicsend on closed channelchanpanicc.closed != 0"send on closed channel"chanc.closed != 0 && c.qcount == 0eptypedmemclrchan