try{aaa}catch(error){console.log("参数未定义")}finally{console.log("执行finally语句了")}
try{aaa}catch(error){console.log(error.description)}finally{console.log("执行finally语句了")}
try{aaa}catch(error){console.log("参数未定义")}finally{console.log("执行finally语句了")}
try{aaa}catch(error){console.log(error.description)}finally{console.log("执行finally语句了")}