前言

提示：需要用到C#和JavaScript还有WebGI.jslib中间件

提示：以下是本篇文章正文内容，下面案例可供参考

一、unity中C#的编程？

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

public class chatWithWeb : MonoBehaviour
{
    // Start is called before the first frame update
    [DllImport("__Internal")]
    private static extern void clickSelectFileBtn();
    /// <summary>
    /// 点击Open按钮
    /// </summary>
    public  void ClickSelectFileBtn()
    {
        clickSelectFileBtn();
    }
}

二、WebGI.jslib中间件

mergeInto(LibraryManager.library, {
  clickSelectFileBtn:function () {
    console.log("Enter");
    clickSelectFileBtn();
  },
});

这个需要打包之前放到unity的项目工程里面

三、前端页面JavaScript的调用？

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
    </head>
    <body>
        <div>
            <button onclick="clickSelectFileBtn()"></button>
            <script type="text/javascript">
                function clickSelectFileBtn()
                {
                    var form = document.createElement("form")
                    form.action = "/form";
                    form.method = "post";
                    form.style.display = "none"
                    var PARAMS = {
                        "riskLevel": '1',
                        "name": '2',
                    };
                    for (var x in PARAMS)
                    {
                        var opt = document.createElement("textarea");
                        opt.name = x;
                        opt.value = PARAMS[x];
                        form.appendChild(opt);
                    }
                    
                    document.body.appendChild(form);
                    form.submit();
                    
                    return temp;
                }

            </script>
        </div>
    </body>
</html>