<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>tryCatch</title>
<script>
function message() {
try {
adddlert("Welcome guest!");
} catch (err) {
let txt = "";
txt = "there is an error page \ n \ n.";
txt + = "Error Description:" + err.message + "\ n \ n";
txt + = "Click OK to continue \ n \ n.";
alert(txt);
}
}
</script>
</head>
<body>
<input type="button" value="查看消息" onclick="message()"/>
</body>
</html>
js tryCatch.html
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Origin blog.csdn.net/weixin_42193179/article/details/90904795
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