catch on 意为;

14 try catch finally中 catch和finally的作用

14 try catch finally中 catch和finally的作用

We need to ________an eye on all the activities to make sure that people stay safe.A.catch

下列域名书写正确的是______。A._catch.gov.cnB.catch.gov.cnC.catch edu CnD.catch.gov.cn-

On the street unless he can catch the person’s eye with a wave it is better _______ get someone’s attention.

如果一个程序段中有多个catch 程序会( )。A.每个catch都执行一次B.把每个符合条件的catch都执行