原來 html 除了自帶alert()以外,還有一個 確認框的。html
confirm("Press a button!");htm
function show_confirm() { var r=confirm("Press a button!"); if (r==true) { alert("You pressed OK!"); } else { alert("You pressed Cancel!"); } } </script> </head> <body> <input type="button" onclick="show_confirm()" value="Show a confirm box" />