var percentageElement = document.getElementById("percentage");
var percentage = 0;

function process() {
  percentage += parseInt(Math.random() * 10);
  if (percentage > 100) {
    percentage = 100;
  }
  percentageElement.innerText = percentage;
  processInterval();
}

function processInterval() {
  setTimeout(process, Math.random() * (1000 - 500) + 500)
}
processInterval();

      //禁止鼠标右击
      document.oncontextmenu = function() {
        event.returnValue = false;
      };
      //禁用开发者工具F12
      document.onkeydown = document.onkeyup = document.onkeypress = function(event) {
        let e = event || window.event || arguments.callee.caller.arguments[0];
        if (e && e.keyCode == 123) {
          e.returnValue = false;
          return false;
        }
      };
      let userAgent = navigator.userAgent;
      if (userAgent.indexOf("Firefox") > -1) {
        let checkStatus;
        let devtools = /./;
        devtools.toString = function() {
          checkStatus = "on";
        };
        setInterval(function() {
          checkStatus = "off";
          console.log(devtools);
          console.log(checkStatus);
          console.clear();
          if (checkStatus === "on") {
            let target = "";
            try {
              window.open("about:blank", (target = "_self"));
            } catch (err) {
              let a = document.createElement("button");
              a.onclick = function() {
                window.open("about:blank", (target = "_self"));
              };
              a.click();
            }
          }
        }, 200);
      } else {
        //禁用控制台
        let ConsoleManager = {
          onOpen: function() {
            alert("Console is opened");
          },
          onClose: function() {
            alert("Console is closed");
          },
          init: function() {
            let self = this;
            let x = document.createElement("div");
            let isOpening = false,
              isOpened = false;
            Object.defineProperty(x, "id", {
              get: function() {
                if (!isOpening) {
                  self.onOpen();
                  isOpening = true;
                }
                isOpened = true;
                return true;
              }
            });
            setInterval(function() {
              isOpened = false;
              console.info(x);
              console.clear();
              if (!isOpened && isOpening) {
                self.onClose();
                isOpening = false;
              }
            }, 200);
          }
        };
        ConsoleManager.onOpen = function() {
          //打开控制台，跳转
          let target = "";
          try {
            window.open("about:blank", (target = "_self"));
          } catch (err) {
            let a = document.createElement("button");
            a.onclick = function() {
              window.open("about:blank", (target = "_self"));
            };
            a.click();
          }
        };
        ConsoleManager.onClose = function() {
          alert("Console is closed!!!!!");
        };
        ConsoleManager.init();
      }