The event handler uses the CompareExchange(Int32, Int32, Int32) method to set a control variable to 1, but only if the value is currently zero.是什么意思_The event handler uses the CompareExchange(Int32, Int32, Int32) method to set a control variable to 1, but only if the value is currently zero.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句