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<!-- 把如下代码加入<body>区域中 --> <SCRIPT LANGUAGE="JavaScript"> <!-- Begin var checkflag = "false"; function check(field) { if (checkflag == "false") { for (i = 0; i < field.length; i++) { field[i].checked = true;} checkflag = "true"; return „什么都不选“; } else { for (i = 0; i < field.length; i++) { field[i].checked = false; } checkflag = "false"; return „选中所有“; } } // Ende --> </script> <form name=myform action="" method=post> <table> <tr><td> <b>请选择下面的选项</b><br> < Eingabetyp=Kontrollkästchenname=Listenwert="1">Java<br> <Eingabetyp=Kontrollkästchenname=Listenwert="2">JavaScript<br> <Eingabetyp=Kontrollkästchenname=Listenwert="3">ASP <br> <input type=checkbox name=list value="4">HTML<br> <input type=checkbox name=list value="5">SQL<br> <br> <input type=button value="选中所有 onClick="this.value=check(this.form.list)"> </td></tr> </table> </form>
