更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/underscore/amd/last.js

@@ -0,0 +1,13 @@
+define(['./rest'], function (rest) {
+
+  // Get the last element of an array. Passing **n** will return the last N
+  // values in the array.
+  function last(array, n, guard) {
+    if (array == null || array.length < 1) return n == null || guard ? void 0 : [];
+    if (n == null || guard) return array[array.length - 1];
+    return rest(array, Math.max(0, array.length - n));
+  }
+
+  return last;
+
+});