diff --git a/main.js b/main.js
new file mode 100644
index 0000000..11f8100
--- /dev/null
+++ b/main.js
@@ -0,0 +1,141 @@
+(function(){
+  const timeout = 1000 * 5 //5秒点一次
+ 
+  let blackList = ['雕像','神殿'] // 部分只能建造一个的建筑需要跳过
+  const houseList = ['房屋', '市政厅', '宅邸'] // 会减少食物的建筑
+
+  var css = `
+    #auto_update_btn {
+      position: fixed;
+      left: 200px;
+      top: 4px;
+      background: #1d1e20;
+      border-radius: 50%;
+      height: 32px;
+      width: 32px;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      text-align: center;
+      font-size: 14px;
+      border: 2px solid white;
+      z-index: 100;
+      color: white;
+      cursor: pointer;
+    }
+    #auto_update_btn.close {
+      background: green;
+    }
+    #auto_update_btn.open {
+      background: red;
+    }
+  `
+  /*添加样式*/
+  function addStyle(css) {
+    if (!css) return
+    var head = document.querySelector('head');
+    var style = document.createElement("style");
+    style.type = 'text/css'
+    style.innerHTML = css
+    head.appendChild(style)
+  }
+ 
+ 
+  /*生成自动升级建筑的按钮*/
+  function createBtn() {
+    var btn = document.createElement("div")
+    btn.title = '开'
+    var span = document.createElement("span");
+    span.innerText = '开'
+    btn.appendChild(span);
+    btn.id = 'auto_update_btn'
+    document.body.appendChild(btn)
+ 
+    /*初始化事件*/
+    // 点击按钮启动定时器
+    btn.addEventListener('click', function() {
+      toggleBtnStatus()
+      toggleBtnText()
+    })
+  }
+ 
+  // 切换文字
+  function toggleBtnText(){
+    const node = document.querySelector('#auto_update_btn')
+    const text = node.innerText
+    if (text === '开') {
+        node.innerText = '关'
+        node.style = 'close'
+    } else {
+        node.innerText = '开'
+        node.style = 'open'
+    }
+  }
+ 
+  // 自动升级建筑
+  function autoClickBuilding(){
+    closeDialog()
+    const tabListNode = document.querySelector(`div[role=tablist]`)
+    const tabNode = tabListNode.childNodes[0]
+    const flag = tabNode && tabNode.getAttribute('aria-selected') === 'true'
+    if(!flag) {
+      console.log('没找到容器，即将切换到“建筑”页')
+      // 自动切换到建造tab页
+      tabNode && tabNode.click()
+    } else {
+      const id = tabNode.getAttribute('aria-controls')
+      const list = document.getElementById(id).querySelectorAll(`button.btn`)
+      judgeFood() // 食物小于3时不建造房屋
+      console.log('寻找可建造物')
+      for(const node of list){
+        if(!node.classList.value.includes('btn-off') && !blackList.some(word=>node.textContent.includes(word))){
+          console.log(`${new Date().toLocaleString()}升级：`,node.textContent)
+          node.click()
+          break
+        }
+      }
+    }
+  }
+  let buildingInterval = null
+ 
+  // 开启自动升级建筑定时器
+  function handleAutoUpdateStart(){
+    buildingInterval = setInterval(autoClickBuilding, timeout)
+  }
+  // 清除自动升级建筑定时器
+  function handleAutoUpdateClear(){
+    buildingInterval = clearInterval(buildingInterval)
+  }
+  // 切换自动升级建筑定时器状态
+  function toggleBtnStatus(){
+    if(buildingInterval) {
+      console.log('~~~~关闭定时器~~~~')
+      handleAutoUpdateClear()
+    } else {
+      console.log('~~~~开启定时器~~~~')
+      handleAutoUpdateStart()
+    }
+  }
+  // 判断食物数量
+  function judgeFood() {
+    var list = document.querySelector('table').querySelectorAll('tr')
+    for(var node of list){
+      if(!node.innerText.includes('食物')) continue
+    		// 获取食物数量
+      var val = Number(node.childNodes[2].innerText.split('/')[0])
+      if(val < 3) {
+        blackList.push(...houseList)
+      } else {
+        blackList = initBlackList()
+      }
+    }
+  }
+  // 关闭dialog
+  function closeDialog(){
+    const dialogNode = document.querySelector('#headlessui-portal-root')
+    dialogNode && dialogNode.querySelector('.sr-only').parentNode.click()
+  }
+ 
+  createBtn()
+  addStyle(css)
+})()
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