diff --git a/app.js b/app.js
new file mode 100644
index 0000000..b545190
--- /dev/null
+++ b/app.js
@@ -0,0 +1,39 @@
+//app.js
+App({
+  onLaunch: function () {
+    // 展示本地存储能力
+    var logs = wx.getStorageSync('logs') || []
+    logs.unshift(Date.now())
+    wx.setStorageSync('logs', logs)
+
+    // 登录
+    wx.login({
+      success: res => {
+        // 发送 res.code 到后台换取 openId, sessionKey, unionId
+      }
+    })
+    // 获取用户信息
+    wx.getSetting({
+      success: res => {
+        if (res.authSetting['scope.userInfo']) {
+          // 已经授权，可以直接调用 getUserInfo 获取头像昵称，不会弹框
+          wx.getUserInfo({
+            success: res => {
+              // 可以将 res 发送给后台解码出 unionId
+              this.globalData.userInfo = res.userInfo
+
+              // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回
+              // 所以此处加入 callback 以防止这种情况
+              if (this.userInfoReadyCallback) {
+                this.userInfoReadyCallback(res)
+              }
+            }
+          })
+        }
+      }
+    })
+  },
+  globalData: {
+    userInfo: null
+  }
+})
\ No newline at end of file
diff --git a/app.json b/app.json
new file mode 100644
index 0000000..3d7616f
--- /dev/null
+++ b/app.json
@@ -0,0 +1,14 @@
+{
+  "pages":[
+    "pages/index/index",
+    "pages/logs/logs"
+  ],
+  "window":{
+    "backgroundTextStyle":"light",
+    "navigationBarBackgroundColor": "#fff",
+    "navigationBarTitleText": "Weixin",
+    "navigationBarTextStyle":"black"
+  },
+  "style": "v2",
+  "sitemapLocation": "sitemap.json"
+}
diff --git a/app.wxss b/app.wxss
new file mode 100644
index 0000000..06c6fc9
--- /dev/null
+++ b/app.wxss
@@ -0,0 +1,10 @@
+/**app.wxss**/
+.container {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: space-between;
+  padding: 200rpx 0;
+  box-sizing: border-box;
+} 
diff --git a/pages/index/index.js b/pages/index/index.js
new file mode 100644
index 0000000..efdf9ee
--- /dev/null
+++ b/pages/index/index.js
@@ -0,0 +1,77 @@
+//index.js
+//获取应用实例
+const rpn = require("../../utils/rpn.js");
+const app = getApp()
+
+Page({
+  data: {
+   ztNum:[
+     'C','⇦','%','÷',
+     '7','8','9','×',
+     '4','5','6','-',
+     '1','2','3','+',
+     ' ','0','.','='
+   ],
+   screenData:0
+  },
+  click:function(e){
+    var index = e.currentTarget.dataset.index;
+    
+      var screenData = this.data.screenData;
+    if(index == 0){
+      this.setData({
+        screenData:'0'
+      })
+    }
+
+    if(index == 1){
+      var screenData = screenData + '';
+      var screenData = screenData.substr(0,screenData.length -1);
+      var screenData = screenData?screenData:'0';
+      this.setData({
+        screenData:screenData
+      })
+    }
+    
+    if(index == 2){
+      var screenData = screenData / 100;
+      this.setData({
+        screenData:screenData
+        })
+    }
+
+    if((index % 4 == 3 && index != 19) || index == 18){
+      var arr = ['.','+','-','×','÷'];
+      var screenData = screenData + '';
+      if(arr.indexOf(screenData.substr(-1,1)) == '-1' && screenData!= '0'){
+       var screenData = screenData + e.currentTarget.dataset.text;
+       this.setData({
+        screenData:screenData
+       })
+      }
+    }
+    if(index >= 4 && index <18 && index %4 !=3 && index !=16){
+      if(screenData == 0){
+        var screenData =  e.currentTarget.dataset.text;
+      }
+      else{
+        var screenData = screenData + e.currentTarget.dataset.text;
+      }
+      this.setData({
+        screenData:screenData
+      })
+    }
+   if(index == 19){
+     var result = rpn.calCommonExp(screenData);
+     this.setData({
+       screenData:result
+     })
+   }
+    
+  }
+})
+/*写个小作文：
+整个小程序就是各种杂七杂八到处偷师学艺搞出来的，其实还有很多不行的地方。
+比如说：数字太多它不会自动跳行，我也找不到解决方法了。
+看了一下其他朋友的小程序 我沉默了。“我怎么不一开始就这样写！！我现在只能跪着走完这条路了 TAT ”
+*/ 
diff --git a/pages/index/index.json b/pages/index/index.json
new file mode 100644
index 0000000..8835af0
--- /dev/null
+++ b/pages/index/index.json
@@ -0,0 +1,3 @@
+{
+  "usingComponents": {}
+}
\ No newline at end of file
diff --git a/pages/index/index.wxml b/pages/index/index.wxml
new file mode 100644
index 0000000..137f5f6
--- /dev/null
+++ b/pages/index/index.wxml
@@ -0,0 +1,10 @@
+<!--index.wxml-->
+<view class="screen">
+  {{screenData}}
+</view>
+<view class="zt">
+  <block wx:for="{{ztNum}}" wx:key="zt">
+    <view class='ztit {{(index < 4 || index % 4 == 3 ) ? "gray" : "white"}}'  bindtap="click" data-index="{{index}}" data-text='{{item}}'>{{item}} 
+    </view>
+  </block>
+</view>
diff --git a/pages/index/index.wxss b/pages/index/index.wxss
new file mode 100644
index 0000000..fdaa697
--- /dev/null
+++ b/pages/index/index.wxss
@@ -0,0 +1,36 @@
+/**index.wxss**/
+.screen{
+ width:95%;
+  margin:0 auto;
+  height:240px;
+  line-height:350px;
+  text-align:right;
+  font-size: 380%;
+}
+.zt{
+  font-family: Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Arial,sans-serif;
+  font-size: 200%;
+  width:95%;
+  margin:0 auto;
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: space-around;
+}
+.zt .ztit{
+width:170rpx;
+height:170rpx;
+line-height:170rpx;
+margin-bottom:15rpx;
+/*background:orange;*/
+text-align: center;
+border-radius: 50%;
+}
+.gray{
+  color:white;
+  background:orange;
+  
+}
+.white{
+  color:rgb(46, 45, 45);
+  background: rgb(184, 183, 183);
+}
\ No newline at end of file
diff --git a/pages/logs/logs.js b/pages/logs/logs.js
new file mode 100644
index 0000000..b2b967d
--- /dev/null
+++ b/pages/logs/logs.js
@@ -0,0 +1,15 @@
+//logs.js
+const util = require('../../utils/util.js')
+
+Page({
+  data: {
+    logs: []
+  },
+  onLoad: function () {
+    this.setData({
+      logs: (wx.getStorageSync('logs') || []).map(log => {
+        return util.formatTime(new Date(log))
+      })
+    })
+  }
+})
diff --git a/pages/logs/logs.json b/pages/logs/logs.json
new file mode 100644
index 0000000..3ee76c1
--- /dev/null
+++ b/pages/logs/logs.json
@@ -0,0 +1,4 @@
+{
+  "navigationBarTitleText": "查看启动日志",
+  "usingComponents": {}
+}
\ No newline at end of file
diff --git a/pages/logs/logs.wxml b/pages/logs/logs.wxml
new file mode 100644
index 0000000..b5a85ac
--- /dev/null
+++ b/pages/logs/logs.wxml
@@ -0,0 +1,6 @@
+<!--logs.wxml-->
+<view class="container log-list">
+  <block wx:for="{{logs}}" wx:for-item="log">
+    <text class="log-item">{{index + 1}}. {{log}}</text>
+  </block>
+</view>
diff --git a/pages/logs/logs.wxss b/pages/logs/logs.wxss
new file mode 100644
index 0000000..94d4b88
--- /dev/null
+++ b/pages/logs/logs.wxss
@@ -0,0 +1,8 @@
+.log-list {
+  display: flex;
+  flex-direction: column;
+  padding: 40rpx;
+}
+.log-item {
+  margin: 10rpx;
+}
diff --git a/project.config.json b/project.config.json
new file mode 100644
index 0000000..30f4f62
--- /dev/null
+++ b/project.config.json
@@ -0,0 +1,72 @@
+{
+  "description": "项目配置文件",
+  "packOptions": {
+    "ignore": []
+  },
+  "setting": {
+    "urlCheck": true,
+    "es6": true,
+    "enhance": false,
+    "postcss": true,
+    "preloadBackgroundData": false,
+    "minified": true,
+    "newFeature": false,
+    "coverView": true,
+    "nodeModules": false,
+    "autoAudits": false,
+    "showShadowRootInWxmlPanel": true,
+    "scopeDataCheck": false,
+    "uglifyFileName": false,
+    "checkInvalidKey": true,
+    "checkSiteMap": true,
+    "uploadWithSourceMap": true,
+    "compileHotReLoad": false,
+    "useMultiFrameRuntime": false,
+    "useApiHook": true,
+    "babelSetting": {
+      "ignore": [],
+      "disablePlugins": [],
+      "outputPath": ""
+    },
+    "enableEngineNative": false,
+    "bundle": false,
+    "useIsolateContext": true,
+    "useCompilerModule": true,
+    "userConfirmedUseCompilerModuleSwitch": false,
+    "userConfirmedBundleSwitch": false,
+    "packNpmManually": false,
+    "packNpmRelationList": [],
+    "minifyWXSS": true
+  },
+  "compileType": "miniprogram",
+  "libVersion": "2.14.1",
+  "appid": "wx6410544054da3d2a",
+  "projectname": "miniprogram-1",
+  "debugOptions": {
+    "hidedInDevtools": []
+  },
+  "scripts": {},
+  "isGameTourist": false,
+  "simulatorType": "wechat",
+  "simulatorPluginLibVersion": {},
+  "condition": {
+    "search": {
+      "list": []
+    },
+    "conversation": {
+      "list": []
+    },
+    "game": {
+      "list": []
+    },
+    "plugin": {
+      "list": []
+    },
+    "gamePlugin": {
+      "list": []
+    },
+    "miniprogram": {
+      "list": []
+    }
+  }
+}
\ No newline at end of file
diff --git a/sitemap.json b/sitemap.json
new file mode 100644
index 0000000..ca02add
--- /dev/null
+++ b/sitemap.json
@@ -0,0 +1,7 @@
+{
+  "desc": "关于本文件的更多信息，请参考文档 https://developers.weixin.qq.com/miniprogram/dev/framework/sitemap.html",
+  "rules": [{
+  "action": "allow",
+  "page": "*"
+  }]
+}
\ No newline at end of file
diff --git a/utils/rpn.js b/utils/rpn.js
new file mode 100644
index 0000000..2d1b5d3
--- /dev/null
+++ b/utils/rpn.js
@@ -0,0 +1,103 @@
+function isOperator(value) {
+  var operatorString = '+-*/()×÷';
+  return operatorString.indexOf(value) > -1;
+}
+
+function getPrioraty(value) {
+  if (value == '-' || value == '+') {
+    return 1;
+  } else if (value == '*' || value == '/' || value == '×' || value == '÷') {
+    return 2;
+  } else {
+    return 0;
+  }
+}
+
+function prioraty(v1, v2) {
+  return getPrioraty(v1) <= getPrioraty(v2);
+}
+
+function outputRpn(exp) {
+  var inputStack = [];
+  var outputStack = [];
+  var outputQueue = [];
+  var firstIsOperator = false;
+  exp.replace(/\s/g, '');
+  if (isOperator(exp[0])) {
+    exp = exp.substring(1);
+    firstIsOperator = true;
+  }
+  for (var i = 0, max = exp.length; i < max; i++) {
+    if (!isOperator(exp[i]) && !isOperator(exp[i - 1]) && (i != 0)) {
+      inputStack[inputStack.length - 1] = inputStack[inputStack.length - 1] + exp[i] + '';
+    } else {
+      inputStack.push(exp[i]);
+    }
+  }
+  if (firstIsOperator) {
+    inputStack[0] = -inputStack[0]
+  }
+  while (inputStack.length > 0) {
+    var cur = inputStack.shift();
+    if (isOperator(cur)) {
+      if (cur == '(') {
+        outputStack.push(cur);
+      } else if (cur == ')') {
+        var po = outputStack.pop();
+        while (po != '(' && outputStack.length > 0) {
+          outputQueue.push(po);
+          po = outputStack.pop();
+        }
+      } else {
+        while (prioraty(cur, outputStack[outputStack.length - 1]) && outputStack.length > 0) {
+          outputQueue.push(outputStack.pop());
+        }
+        outputStack.push(cur)
+      }
+    } else {
+      outputQueue.push(Number(cur));
+    }
+  }
+  if (outputStack.length > 0) {
+    while (outputStack.length > 0) {
+      outputQueue.push(outputStack.pop());
+    }
+  }
+  return outputQueue;
+}
+
+function calRpnExp(rpnArr) {
+  var stack = [];
+  for (var i = 0, max = rpnArr.length; i < max; i++) {
+    if (!isOperator(rpnArr[i])) {
+      stack.push(rpnArr[i]);
+    } else {
+      var num1 = stack.pop();
+      var num2 = stack.pop();
+      if (rpnArr[i] == '-') {
+        var num = num2 - num1;
+      } else if (rpnArr[i] == '+') {
+        var num = num2 + num1;
+      } else if (rpnArr[i] == '*' || rpnArr[i] == '×') {
+        var num = num2 * num1;
+      } else if (rpnArr[i] == '/' || rpnArr[i] == '÷') {
+        var num = num2 / num1;
+      }
+      stack.push(num);
+    }
+  }
+  return stack[0];
+}
+
+function calCommonExp(exp) {
+  var rpnArr = outputRpn(exp);
+  return calRpnExp(rpnArr)
+}
+
+module.exports = {
+  isOperator: isOperator,
+  getPrioraty: getPrioraty,
+  outputRpn: outputRpn,
+  calRpnExp: calRpnExp,
+  calCommonExp: calCommonExp
+}
\ No newline at end of file
diff --git a/utils/util.js b/utils/util.js
new file mode 100644
index 0000000..dbadbb8
--- /dev/null
+++ b/utils/util.js
@@ -0,0 +1,19 @@
+const formatTime = date => {
+  const year = date.getFullYear()
+  const month = date.getMonth() + 1
+  const day = date.getDate()
+  const hour = date.getHours()
+  const minute = date.getMinutes()
+  const second = date.getSeconds()
+
+  return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
+}
+
+const formatNumber = n => {
+  n = n.toString()
+  return n[1] ? n : '0' + n
+}
+
+module.exports = {
+  formatTime: formatTime
+}