提交初始版本，使用vant ui库

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
+}