【获取网页url参数】

用到了 WebGL：与浏览器脚本交互 (opens new window) 的技术。

GetWebUrlScript.cs：

using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;

public class GetWebUrlScript
{
    [DllImport("__Internal")]
    private static extern string StringReturnValueFunction();

    //UrlMsg的数据是 ?a=100&b=vp666
    public static string UrlMsg = string.Empty;

    // 参数字典
    public static Dictionary<string, string> paramsMap = new Dictionary<string, string>();

    [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
    public static void InitUrlData()
    {
#if !UNITY_EDITOR&&UNITY_WEBGL
        UrlMsg = StringReturnValueFunction();
        UrlMsg = UrlMsg.Substring(1);//去掉问号
        string[] pArr = UrlMsg.Split('&');
        for (int i = 0; i < pArr.Length; i++)
        {
            string[] tArr = pArr[i].Split('=');
            string key = tArr[0];
            string value = tArr[1];
            paramsMap[key] = value;
        }
#endif
    }
}

Plugins/My.jslib

var MyPlugin = {
    StringReturnValueFunction: function()
    {
        var returnStr = window.location.search;
        var buffer = _malloc(lengthBytesUTF8(returnStr) + 1);
        stringToUTF8(returnStr,buffer,lengthBytesUTF8(returnStr) + 1);
        return buffer;
    }
};
mergeInto(LibraryManager.library,MyPlugin);