diff --git a/web/index.css b/web/index.css
index c5eaab3..98a8b4e 100644
--- a/web/index.css
+++ b/web/index.css
@@ -26,6 +26,17 @@ body {
     top: 60px;
     bottom: 50px;
 }
+.optionTips {
+    position: absolute;
+    top: 3px;
+    right: 10px;
+}
+.previewTips {
+    position: absolute;
+    top: 3px;
+    left: 10px;
+    color: #fff;
+}
 .run {
     display: block;
     position: fixed;
@@ -43,8 +54,12 @@ body {
 .run:active, .run:visited {
     color: #fff;
 }
-
+#svg {
+    position: absolute;
+    top: 50%;
+    margin-top: -200px;
+}
 svg {
     display: block;
-    margin: 30px auto;
+    margin: auto;
 }
\ No newline at end of file
diff --git a/web/index.html b/web/index.html
index 8cd9749..54b0ee8 100644
--- a/web/index.html
+++ b/web/index.html
@@ -12,11 +12,16 @@
 
 <body>
     <div class="header">Go Charts</div>
-    <div class="codeWrapper"><textarea id="codeInput"></textarea></div>
+    <div class="codeWrapper">
+        <textarea id="codeInput"></textarea>
+        <div class="optionTips">ECharts配置</div>
+    </div>
     <div class="previewWrapper">
         <div id="svg"></div>
+        <div class="previewTips">图表SVG效果</div>
     </div>
     <a href="#" class="run" onclick="run()">运行</a>
 </body>
 <script src="/static/index.js"></script>
+
 </html>
\ No newline at end of file
diff --git a/web/index.js b/web/index.js
index 9e5e65a..a823c88 100644
--- a/web/index.js
+++ b/web/index.js
@@ -8,7 +8,22 @@ editor.setSize("100%", height);
 
 function run() {
     var option = editor.getValue();
-    axios.post("/", JSON.parse(option)).then(function(resp) {
+    var data = null;
+    try {
+        if (option.indexOf("option = ") !== -1) {
+            var fn = new Function("var " + option + ";return option;");
+            data = fn();
+        } else {
+            data = JSON.parse(option);
+        }
+    } catch (err) {
+        alert(err.message);
+        return;
+    }
+
+    axios.post("/", data).then(function(resp) {
         document.getElementById("svg").innerHTML = resp;
+    }).catch(function(err) {
+        alert(err.message);
     });
 }
\ No newline at end of file
