diff --git a/js/bdwareclient.js b/js/bdwareclient.js
index e2e294b..5b2030c 100644
--- a/js/bdwareclient.js
+++ b/js/bdwareclient.js
@@ -401,6 +401,7 @@ function changeAppInternal(requireRendering) {
             + "	            <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"
+            + "                  <input type=\"text\" class=\"form-control col-2\" id=\"gasInput\" placeholder=\"填写gas\" >\n"
             + "                  <div class=\"input-group-append input-group-text\">\n"
 
             + "<input type=\"checkbox\" id=\"executeContractAsDebug\"   aria-label=\"Checkbox for isDebug\"  data-toggle=\"tooltip\"  title=\"模拟调用\"></input>"
@@ -473,14 +474,21 @@ function triggerExecuteCurrentContract() {
     console.log(funNode);
     const argInput = $("#argInput");
     var contract = global.currentContract;
-    executeContract(contract.id, funNode.functionName, argInput[0].value,
+    var gas = $("#gasInput")[0].value/1;
+    executeContractWithGas(contract.id, funNode.functionName, argInput[0].value,gas,
         fillResultInternal, executeContractAsDebug.checked);
-    const iHtml = "/SCIDE/SCManager?action=executeContract&contractID="
+    var iHtml = "/SCIDE/SCManager?action=executeContract&contractID="
         + global.currentContract.name + "&operation="
-        + funNode.functionName + "&arg=" + argInput[0].value
-        + "&pubkey=" + global.sm2Key.publicKey + "&signature=";
-    const toSign = global.currentContract.name + "|" + funNode.functionName + "|"
-        + argInput[0].value + "|" + global.sm2Key.publicKey;
+        + funNode.functionName + "&arg=" + argInput[0].value;
+
+    var toSign = global.currentContract.name + "|" + funNode.functionName + "|"
+        + argInput[0].value ;
+    if (gas>0){
+      toSign+="|"+gas;
+      iHtml+="&gasLimit="+gas;
+    }
+    iHtml+= "&pubkey=" + global.sm2Key.publicKey + "&signature=";
+    toSign+= "|" + global.sm2Key.publicKey;
     const signature = sm2.doSignature(toSign, global.sm2Key.privateKey, {hash: true, der: true});
     let urlPre = $("#urlInput")[0].value;
     if (urlPre.startsWith("ws")) {
@@ -520,6 +528,9 @@ function fillResultInternal(result, data) {
     global.responseCollector[data.responseID].push(data);
     $("#statusSpan")[0].innerHTML = result.status;
     $("#timeSpan")[0].innerHTML = "调用耗时:" + data.executeTime + "(ms)";
+    if (data.executionGas !=undefined && data.executionGas>0)
+     $("#timeSpan")[0].innerHTML+="<br> "+data.executionGas+"(gas)";
+    $("#timeSpan")[0].innerHTML
     if (result.result instanceof Object) {
         $("#responseArea")[0].value = JSON.stringify(result.result);
         $("#timeSpan")[0].innerHTML += "<br> JSON格式";
diff --git a/js/createWS.js b/js/createWS.js
index 250d28a..adff751 100644
--- a/js/createWS.js
+++ b/js/createWS.js
@@ -179,6 +179,34 @@ var onExecuteResultInternal = function (data) {
         callback(global.executeResult, data);
     }
 };
+window.executeContractWithGas = function (contractID, method, strarg, gas, cb, asDebug) {
+    var sm2Key = global.sm2Key;
+    var request = {};
+    request.action = "executeContract";
+    request.requestID = new Date().getTime() + "_"
+        + Math.floor(Math.random() * 10000);
+    if (asDebug)
+       request.isDebug = true;
+    global.cbs[request.requestID] = cb;
+    request.contractID = contractID;
+    request.operation = method;
+    request.arg = strarg;
+    if (sm2Key) {
+        request.pubkey = sm2Key.publicKey;
+        var toSign = request.contractID + "|"
+                                 + method + "|" + strarg ;
+        if (gas>0){
+              request.gasLimit = gas;
+              toSign+= "|" + gas;
+        }
+        toSign+= "|" + sm2Key.publicKey;
+        request.signature = sm2.doSignature(toSign ,
+            sm2Key.privateKey, {hash: true, der: true});
+    }
+
+    global.wssocket.send(JSON.stringify(request));
+};
+
 window.executeContract = function (contractID, method, strarg, cb, asDebug) {
     var sm2Key = global.sm2Key;
     var request = {};