对于JavaScript,请使用throw语句引发内置异常或自定义异常。以后可以捕获这些异常,您可以采取适当的措施。
您可以尝试运行以下代码以在JavaScript中实现throw语句-
<html> <head> <script> <!-- function myFunc() { var a = 100; var b = 0; try { if ( b == 0 ){ throw( "除以零误差。" ); } else { var c = a / b; } } catch ( e ) { alert("Error: " + e ); } } //--> </script> </head> <body> <p>Click the following to see the result:</p> <form> <input type = "button" value = "Click Me" onclick = "myFunc();" /> </form> </body> </html>