增加localstorage和rem

src/utils/localstorage.js

@@ -0,0 +1,20 @@
+/**
+ * localStorage操作
+ * @type {{get(*=, *=): *, save(*=, *=): void, clear(): void, remove(*=): void}}
+ */
+const db = {
+  save(key, value) {
+    localStorage.setItem(key, JSON.stringify(value))
+  },
+  get(key, defaultValue = {}) {
+    return JSON.parse(localStorage.getItem(key)) || defaultValue
+  },
+  remove(key) {
+    localStorage.removeItem(key)
+  },
+  clear() {
+    localStorage.clear()
+  }
+}
+
+export default db

src/utils/rem.js

@@ -0,0 +1,26 @@
+/**
+ * 为了适配rem
+ * 可以在main.js中全局引入
+ */
+(function(window, document) {
+  function resize() {
+    var ww = window.innerWidth
+    if (ww > window.screen.width) {
+      window.requestAnimationFrame(resize)
+    } else {
+      if (ww > 750) {
+        ww = 750
+      }
+      document.documentElement.style.fontSize = (ww * 100) / 750 + 'px'
+    }
+  }
+
+  resize()
+
+  window.addEventListener('resize', resize)
+  window.addEventListener('pageshow', function(e) {
+    if (e.persisted) {
+      resize()
+    }
+  })
+})(window, document)