客户要求输入框要记录下上一次输入的内容

function setCookie(name, value, iDay) 
{
    var oDate=new Date();
     
    oDate.setDate(oDate.getDate()+iDay);
     
    document.cookie=name+‘=‘+encodeURIComponent(value)+‘;expires=‘+oDate;
}
 
function getCookie(name)
{
    var arr=document.cookie.split(‘; ‘);
    var i=0;
    for(i=0;i<arr.length;i++)
    {
        //arr2->[‘username‘, ‘abc‘]
        var arr2=arr[i].split(‘=‘);
         
        if(arr2[0]==name)
        {  
            var getC = decodeURIComponent(arr2[1]);
            return getC;
        }
    }
     
    return ‘‘;
}
 
function removeCookie(name)
{
    setCookie(name, ‘1‘, -1);
}