feat: 改写sessionStorage 方法

base/service/sessionStorage.service.js

+export const sStorage = {
+  setItem(key, value) {
+    uni.setStorageSync(key, value);
+  },
+  getItem(key) {
+    return uni.getStorageSync(key);
+  },
+  removeItem(key) {
+    uni.removeStorageSync(key);
+  },
+  clear() {
+    uni.clearStorageSync();
+  },
+  /**
+   * @function 判断类型
+   * @param {any} para 必须参数，判断的值
+   */
+  getType(para) {
+    const type = typeof para;
+    if (type === "number" && isNaN(para)) return "NaN";
+    if (type !== "object") return type;
+    return Object.prototype.toString
+      .call(para)
+      .replace(/[\[\]]/g, '') // eslint-disable-line
+      .split(" ")[1]
+      .toLowerCase();
+  }
+};