Cookie,用于保存包括一个变量在内的多个值

Cookie to hold multiple values including a variable?

本文关键字:变量 用于 保存 包括一 Cookie      更新时间:2023-09-26

我正试图将多个变量保存在一个cookie中,这是代码:

function changeColors(){
//get the numbers from the html
var rd = parseInt(document.getElementById("red").value);
var gr = parseInt(document.getElementById("green").value);
var bl = parseInt(document.getElementById("blue").value);
var op = parseFloat(document.getElementById("opacity").value);

//convert the decimal into hexadecimal
var rdhex = (rd < 16) ? "0" + rd.toString(16) : rd.toString(16);
var grhex = (gr < 16) ? "0" + gr.toString(16) : gr.toString(16);
var blhex = (bl < 16) ? "0" + bl.toString(16) : bl.toString(16);
//concatenate all hex to generate a color
var hexcode = "#" + rdhex + grhex + blhex;
//view the change in the browser
document.getElementById("div").style.backgroundColor = hexcode;
document.getElementById("colordisplay").innerHTML = hexcode;
//change opacity
document.getElementById("div").style.opacity = op;
}
function WriteCookie()
{
if( document.myform.name.value == "" ){
    alert("Enter some value!");
    return;
}
cookievalue= escape(document.myform.red.value) + ";" +
    escape(document.myform.red.value)+ ";"+
    escape(document.myform.green.value)+ ";"+
    escape(document.myform.blue.value)+ ";"+
    escape(document.myform.opacity.value)+ ";";
document.cookie="color=" + cookievalue;
alert("Setting Cookies : " + "color=" + cookievalue );
// To revise!!!How do we set multiple values to one cookie?
function ReadCookie()
{
var allcookies = document.cookie;
alert("All Cookies : " + allcookies );
// Get all the cookies pairs in an array
cookiearray  = allcookies.split(';');

我需要将名称、RGB和不透明度存储在cookie中,以便稍后用户可以从他自己管理的以前的颜色中进行选择。我的问题是如何在cookie中存储var六进制代码和不透明度以及颜色名称?

您可以将值与join()连接在一起,即:

var separator = ":" // or whatever
var values = [name, rgb, opacity].join(separator);
// then you store the values in a cookie
document.cookie = "myValues=" + values;

要在cookie中存储值,请参阅What is the";最好的";使用JavaScript 获取和设置单个cookie值的方法