日期:2014-05-17  浏览次数:20756 次

window.location.href异常
JS语句:
JScript code

 function inquireInformation(option)
    {
           var value=option.value;
        alert(value);
        if(value=="student")
        {
            window.location.href="teacher_selectStudents.jsp";
        }
        else if(value="teacher")
        {
            window.location.href="teacher_selectTeachers.jsp";
        }
        else if(value="sc")
        {
            window.location.href="teacher_selectGrade.jsp";
        }
        else if(value="allKeBiao")
        {
            window.location.href="teacher_selectAllKeBiao.jsp";
        }
        else if(value="singleKeBiao")
        {
            window.location.href="teacher_selectSingleKeBiao.jsp";
        }
        else{alert("hahah");}
    }


HTML语句:
HTML code

    <select id="infomation" onChange="inquireInformation(this)">
         <option>查询信息</option>
         <option  value="student">查询全部学生信息</option>
         <option value="teacher">查询全部教师信息</option>
         <option value="sc">查询全部学生成绩</option>
         <option value="allKeBiao">查询全部课表</option>
         <option value="singleKeBiao">查询个人课表</option>
       </select>


选择第三个及以下option(查询全部学生成绩以下),都一直跳到第二个界面上(查询全部教师信息界面),而不会跳到规定的页面。
也就是说只有前两个option跳转正常,下面的option的就直接跳到第二个option所跳转的界面


------解决方案--------------------
楼主你没有发现你小了一个“=”?
value=="student",这个正确
value="teacher",这个就不正确了,它是个赋值语句,不是个判断语句。
但是if (value="teacher")永远是“真”,因为value不为空,所以除了第一个判断,其它全部都执行
window.location.href="teacher_selectTeachers.jsp";
------解决方案--------------------
JScript code
function inquireInformation(option)
    {
           var value=option.value;
        alert(value);
        if(value=="student")
        {
            window.location.href="teacher_selectStudents.jsp";
        }
        else if(value[color=#FF0000]=[/color]"teacher")
        {
            window.location.href="teacher_selectTeachers.jsp";
        }
        else if(value[color=#FF0000]=[/color]"sc")
        {
            window.location.href="teacher_selectGrade.jsp";
        }
        else if(value[color=#FF0000]=[/color]"allKeBiao")
        {
            window.location.href="teacher_selectAllKeBiao.jsp";
        }
        else if(value[color=#FF0000]=[/color]"singleKeBiao")
        {
            window.location.href="teacher_selectSingleKeBiao.jsp";
        }
        else{alert("hahah");}
    }

------解决方案--------------------
else if(value="teacher")

------解决方案--------------------
function inquireInformation(option)
{
var value=option.value;
alert(value);
if(value=="student")
{
window.location.href="teacher_selectStudents.jsp";
}
else if(value=="teacher")
{
window.location.href="teacher_selectTeachers.jsp";
}
else if(value="sc")
{
window.location.href="teacher_selectGrade.jsp";
}
else if(value=="allKeBiao")