first commit

历届学生/fontendseven/项目练习/上课项目/聊天/fontend/js/utils/utils.js

@@ -0,0 +1,17 @@
+class Utils {
+
+    query(variable) {
+        var query = window.location.search.substring(1);
+        var vars = query.split("&");
+        for (var i=0;i<vars.length;i++) {
+            var pair = vars[i].split("=");
+            if(pair[0] == variable){
+                return decodeURI(pair[1]);
+            }
+        }
+        return(false);
+    }
+}
+
+// 对象的解构赋值
+var { query } = new Utils()