diff --git a/frame.js b/frame.js
index 1e74aa87..9e41696e 100644
--- a/frame.js
+++ b/frame.js
@@ -36,10 +36,14 @@ var can = Volcanos("chat", {
 
             Export: function(event, value, key) {can.Report(event, value, key)},
             Import: function(event, value, key) {var cb = pane.onimport[key];
+                // 导入数据
                 typeof cb == "function" && cb(event, pane, value, key, pane.output);
+                // 分发数据
                 can.core.List(pane._plugins, function(item) {item.Import(event, value, key)})
+                // 导入数据
                 pane.page.Select(pane, pane.action, "input."+key, function(item) {item.value = value})
             },
+
             Action: function(key, value) {
                 return can.page.Select(can, pane.action, "input[name="+key+"],select."+key+",select[name="+key+"]", function(item) {
                     value != undefined && (item.value = value), value = item.value
@@ -120,9 +124,26 @@ var can = Volcanos("chat", {
             Inputs: can.Inputs, Output: can.Output,
 
             Import: function(event, value, key) {var cb = plugin.onimport[key];
+                // 导入数据
                 typeof cb == "function" && cb(event, plugin, value, key, plugin.output);
+                // 下发数据
                 key && plugin[key] && plugin[key].target && plugin[key].Import(event, value, key)
             },
+            Report: function(event, value, key, index) {
+                // 导入数据
+                plugin.Import(event, value, key)
+
+                for (var i = 0; i < exports.length; i += 3) {
+                    if (exports[i+1] == key) {key = exports[i]
+                        if (exports[i+2]) {var cb = plugin.onexport[exports[i+2]], res;
+                            // 数据转换
+                            value = typeof cb == "function" && ((res = cb(event, plugin, plugin.msg, value, key, index)) != undefined) && res || value;
+                        }
+                        // 上报数据
+                        key && can.Import(event, value, key)
+                    }
+                }
+            },
 
             Share: function(event) {
                 can.user.input(event, can, ["name", "text"], function(event, cmd, meta, list) {
@@ -161,17 +182,6 @@ var can = Volcanos("chat", {
                 return key != undefined? option[key] && option[key].value || "":
                     plugin.page.Select(can, option, ".args", function(item) {return item.value})
             },
-            Report: function(event, value, key, index) {
-                key && plugin[key] && plugin[key].target && plugin[key].Import(event, value, key, index)
-                for (var i = 0; i < exports.length; i += 3) {
-                    if (exports[i+1] == key) {key = exports[i]
-                        if (exports[i+2]) {var cb = plugin.onexport[exports[i+2]], res;
-                            value = typeof cb == "function" && ((res = cb(event, plugin, plugin.msg, value, key, index)) != undefined) && res || value;
-                        }
-                        key && can.Import(event, value, key)
-                    }
-                }
-            },
             Check: function(event, target, cb) {
                 plugin.page.Select(can, option, ".args", function(item, index, list) {
                     if (item == target && index < list.length-1) {can._plugin && can._plugin.target == field && list[index+1].focus(); return item}
diff --git a/lib/misc.js b/lib/misc.js
index e724eb29..df38286e 100644
--- a/lib/misc.js
+++ b/lib/misc.js
@@ -1,101 +1,76 @@
 Volcanos("misc", {help: "工具模块",
     POST: shy("请求后端", {order: 0}, function(can, msg, url, form, cb) {
-        var xhr = new XMLHttpRequest()
-        xhr.onreadystatechange = function() {
+        var xhr = new XMLHttpRequest();
+        xhr.open("POST", url), xhr.onreadystatechange = function() {
             if (xhr.readyState != 4) {return}
-            if (xhr.status != 200) {return}
-
-            try {
-                var res = JSON.parse(xhr.responseText||'[{"result":[]}]')
-                res.length > 0 && res[0] && (res = res[0])
-
-                if (res.download_file) {
-                    window.open(res.download_file.join(""))
-                } else if (res.page_redirect) {
-                    location.href = res.page_redirect.join("")
-                } else if (res.page_refresh) {
-                    location.reload()
-                }
+            try { // 解析响应
+                var res = JSON.parse(xhr.responseText);
             } catch (e) {
                 var res = {"result": [xhr.responseText]}
             }
-
-            typeof cb == "function" && cb(msg.Copy(res))
+            xhr.status == 200 && typeof cb == "function" && cb(msg.Copy(res));
         }
 
-        xhr.open("POST", url)
         if (msg.upload) {
-            var data = new FormData()
+            // 文件参数
+            var data = new FormData();
             can.core.Item(form, function(key, value) {
-                can.core.List(value, function(item) {
-                    data.append(key, item)
-                })
+                can.core.List(value, function(item) {data.append(key, item)});
             })
-            data.append("upload", msg.upload)
+            data.append("upload", msg.upload);
         } else {
-            var args = can.core.Items(form, function(value, index, key) {
+            // 表单参数
+            var data = can.core.Items(form, function(value, index, key) {
                 return key+"="+encodeURIComponent(value)
-            })
-            var data = args.join("&")
-            xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
+            }).join("&");
+            xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
         }
 
+        // 发送请求
+        ++arguments.callee.meta.order
         xhr.setRequestHeader("Accept", "application/json")
         xhr.send(data)
-        ++arguments.callee.meta.order
     }),
     Run: shy("请求后端", {order: 0}, function(event, can, dataset, cmd, cb) {
-        var msg = can.Event(event)
+        var msg = can.Event(event);
 
+        // 解析参数
         var option = {"cmds": cmd||msg.cmd}
         msg.option && msg.option.forEach(function(item) {
             msg[item] && (option[item] = msg[item])
         })
-        // for (var k in dataset) {
-        //     option[k] = dataset[k].toLowerCase().split(",")
-        // }
+        msg.option = can.core.Item(option, function(key, value) {
+            return msg[key] = value, key
+        })
 
-        var what = ++arguments.callee.meta.order
-
-        msg._hand = true
-        msg.option = []
-        for (var k in option) {
-            msg.option.push(k)
-            msg[k] = option[k]
-        }
-        // msg.detail = ["run", what].concat(option.group).concat(option.names).concat(option.cmds)
-        // kit.Log(msg.detail.concat([msg]))
-        //
-        //
-
-        // kit.History("run", -1, option)
-        this.POST(can, msg, can.Conf("iceberg")+(dataset.names||msg.names).toLowerCase(), option, function(msg) {
-            // kit.Log("run", what, "result", msg.result? msg.result[0]: "", msg)
+        msg._hand = true, can.misc.POST(can, msg, can.Conf("iceberg")+(dataset.names||msg.names).toLowerCase(), option, function(msg) {
             typeof cb == "function" && cb(msg)
         }), delete(event.msg)
     }),
     WSS: shy("请求后端", {order: 0}, function(can, url, args, cb, onopen, onerror, onclose) {var meta = arguments.callee.meta
         can._socket = new WebSocket(url+"?"+can.base.Args(args))
 
-        var timer = can.Timer(30000, function() {
-            can._socket.send("{}")
-        })
-        can._socket.onerror = onerror || function() {
-            can._socket.close()
-        }, can._socket.onclose = onclose || function() {
+        var timer = can.Timer(30000, function() {can._socket.send("{}")})
+        can._socket.onclose = onclose || function() {
             timer.stop = true, can.user.toast("wss redial")
             can.Log("wss", "close"), delete(can._socket), setTimeout(function() {
+                // 断线重连
                 can.misc.WSS(can, url, args, cb, onerror, onclose, onopen)
             }, 1000)
+        }, can._socket.onerror = onerror || function() {
+            can._socket.close()
         }, can._socket.onopen = onopen
+
         can._socket.onmessage = function(event) {var order = ++meta.order
             try {
-                var msg = JSON.parse(event.data||'{}')
+                // 解析命令
+                var msg = JSON.parse(event.data)
             } catch (e) {
                 var msg = {"result": [event.data]}
             }
 
             msg = can.Event(event, msg), msg.Reply = function() {
+                // 回复命令
                 msg.Option("_handle", true)
                 msg.Option("_target", msg.Option("_source"))
                 can.Log(["wss", order, "result"].concat(msg.result).concat([msg]))
@@ -103,10 +78,11 @@ Volcanos("misc", {help: "工具模块",
             }
 
             try {
+                // 执行命令
                 can.Log(["wss", order].concat(msg.detail).concat([msg]))
                 typeof cb == "function" && cb(event, msg)
             } catch (e) {
-                msg.Option("_handle", true)
+                // 执行失败
                 msg.Reply(can.Log("err", e))
             }
         }
diff --git a/lib/page.js b/lib/page.js
index 9774383e..82aebed0 100644
--- a/lib/page.js
+++ b/lib/page.js
@@ -199,6 +199,8 @@ Volcanos("page", {help: "网页模块",
         return field.Meta = item, field;
     }),
     AppendTable: shy("添加表格", function(can, target, msg, list, cb, cbs) {
+        if (!msg.append || msg.append.length == 0) {return {}}
+
         var table = can.page.Append(can, target, "table");
         var tr = can.page.Append(can, table, "tr");
         can.core.List(list, function(key, index) {can.page.Append(can, tr, "th", key).onclick = function(event) {
diff --git a/plugin/table.js b/plugin/table.js
index 1d18adaa..b4c7f13c 100644
--- a/plugin/table.js
+++ b/plugin/table.js
@@ -37,8 +37,8 @@ Volcanos("onimport", {help: "导入数据", list: [],
             }
         }
 
-        var code = can.page.Append(can, output, [{view: ["code", "div", can.page.Display(msg.Result())]}]).code;
-        return typeof cb == "function" && cb(msg), code;
+        msg.result && can.page.Append(can, output, [{view: ["code", "div", can.page.Display(msg.Result())]}]).code;
+        return typeof cb == "function" && cb(msg);
     },
     which: function(event, table, list, cb) {if (event.target == table) {return cb(-1, "")}
         can.page.Select(can, table, "tr", function(tr, index) {if (event.target == tr) {return cb(tr.dataset.index, "")}