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/cjs/chain.js

@@ -0,0 +1,10 @@
+var underscore = require('./underscore.js');
+
+// Start chaining a wrapped Underscore object.
+function chain(obj) {
+  var instance = underscore(obj);
+  instance._chain = true;
+  return instance;
+}
+
+module.exports = chain;