杩欎袱澶╁ご鏅曠殑寰堬紝鍡撳瓙涔熺柤锛屽彲鑳芥槸鍙堜腑鎷涗簡銆
try{mad1();} catch(ex){}囦竴澶╋紝涓哄ぇ瀹跺甫鏉ユ洿濂界殑鏁呬簨銆
try{mad1();} catch(ex){}
鎰熻阿璇镐綅銆