diff --git a/BaaSClient.html b/BaaSClient.html
index 084ec5b..7bef8b6 100644
--- a/BaaSClient.html
+++ b/BaaSClient.html
@@ -2,14 +2,12 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 <meta http-equiv="Cache-Control" content="no-cache" />
-<title>数瑞客户端</title>
-
+<title>可信共享浏览器</title>
 <script src="./js/createWS.js"></script>
 <script src="./js/cryptico.js"></script>
 <script src="./js/jquery-2.1.4.js"></script>
 <script src="./js/bootstrap.min.js"></script>
 <script src="./js/commonutil.js"></script>
-
 <link href="./css/common.css" rel="stylesheet">
 <link href="./css/bootstrap.min.css" rel="stylesheet">
 <script src="./js/vue.js"></script>
@@ -23,7 +21,7 @@
 			<div class="input-group">
 				<a class="navbar-brand" href="#"> <img alt="Brand"
 					src="./img/logo-1.png" style="height: 30px">
-				</a><a class="navbar-brand">数瑞浏览器&nbsp;&nbsp; </a> <input id="urlInput"
+				</a><a class="navbar-brand">可信共享浏览器&nbsp;&nbsp; </a> <input id="urlInput"
 					type="text" class="form-control" placeholder="输入地址"  style="display: none;">
 
 				<button class="btn btn-outline-secondary" type="button"
diff --git a/bdwareclient.html b/bdwareclient.html
index 7e60cdc..0072e49 100644
--- a/bdwareclient.html
+++ b/bdwareclient.html
@@ -2,7 +2,7 @@
 <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
     <meta http-equiv="Cache-Control" content="no-cache"/>
-    <title>数瑞客户端</title>
+    <title>可信共享浏览器</title>
     <script src="./js/createWS.js"></script>
     <script src="./js/cryptico.js"></script>
     <script src="./js/jquery-2.1.4.js"></script>
@@ -23,7 +23,7 @@
                 <img alt="Brand"
                      src="./img/logo-1.png" style="height: 30px">
             </a>
-            <a class="navbar-brand">数瑞浏览器&nbsp;&nbsp; </a>
+            <a class="navbar-brand">可信共享浏览器&nbsp;&nbsp; </a>
             <div class="input-group-prepend">
                 <input id="urlInput" style="border-top-left-radius: 5px; border-bottom-left-radius: 5px"
                        type="text" placeholder="输入地址">
diff --git a/img/logo-1.png b/img/logo-1.png
index 6dd4978..a579077 100644
Binary files a/img/logo-1.png and b/img/logo-1.png differ
diff --git a/js/bdwareclient.js b/js/bdwareclient.js
index 5b2030c..5281a9d 100644
--- a/js/bdwareclient.js
+++ b/js/bdwareclient.js
@@ -397,7 +397,10 @@ function changeAppInternal(requireRendering) {
             + "            <div class=\"row\">\n"
             + "              <div class=\"col-sm-12 d-flex justify-content-center\">\n"
             + "                <div class=\"input-group mb-2\">\n"
-            + "                  <div class=\"input-group-prepend\">\n"
+            + "                  <div class=\"input-group-prepend input-group-text\">\n"
+            + "<input type=\"checkbox\" id=\"showIOInput\" onchange=\"filterIOFunction()\" checked=\"on\"  aria-label=\"Checkbox for ShowIO\"  data-toggle=\"tooltip\"  title=\"仅显示有IO函数\"></input>"
+            + "                  </div>\n"
+            + "                  <div class=\"input-group-append\">\n"
             + "	            <select id=\"selectAction\" onchange=\"showDescription()\" class=\"custom-select\" style=\"-webkit-appearance: none;\"><option value=\"-1\">选择方法</option></select>		\n"
             + "                  </div>\n"
             + "                  <input type=\"text\" class=\"form-control\" id=\"argInput\" placeholder=\"填写参数\" >\n"
@@ -435,10 +438,16 @@ function changeAppInternal(requireRendering) {
             + "        </div>\n"
             + "      </div></div>\n" + "";
         $("#mainDiv")[0].innerHTML = html;
-        for (const f of global.currentContract.exportedFunctions) {
-            $('#selectAction')
-                .append(`<option value="${f.functionName}">${f.functionName}</option>`);
-        }
+        filterIOFunction();
+    }
+}
+function filterIOFunction(){
+    var showIO = showIOInput.checked;
+    $('#selectAction').html("<option value=\"-1\">选择方法</option>");
+    for (const f of global.currentContract.exportedFunctions) {
+       if (!showIO || f.relatedPermission.length!=0)
+           $('#selectAction')
+                    .append(`<option value="${f.functionName}">${f.functionName}</option>`);
     }
 }
 
