try…catch…finally
<script>
try {
var a = 10;
alert(myFunc(a));
}
catch (e) {
alert(e);
}
finally {
alert("异常兜底");
}
</script>
<script>
try {
var a = 10;
alert(myFunc(a));
}
catch (e) {
alert(e);
}
finally {
alert("异常兜底");
}
</script>