帮忙解决个问题

var DaMaUserName = "测试账号";
var DaMaPWD = "测试密码";
var CodeImg = images.read("./res/testCodeImg.png");
console.log("账号：" + DaMaUserName);
console.log("密码：" + DaMaPWD);
console.log(getCode(DaMaUserName, DaMaPWD, CodeImg).data.res");
以上代码单独运行是正常的，调用getCode返回码值，getCode里面包含Http操作

"ui";
ui.layout(
<vertical>
<linear marginLeft="8">
<text textSize="14sp" textColor="black" text="账号：" />
<input textSize="12sp" id="text_DaMaUserName" w="100" text="测试账号" />
<text textSize="14sp" textColor="black" marginLeft="20" text="密码：" />
<input textSize="12sp" id="text_DaMaPWD" w="100" " text="测试密码" />
</linear>
<linear marginLeft="8">
<text textSize="14sp" textColor="black" text="测试码：" />
<img src="file://.//res//testCodeImg.png" w="auto" h="auto" margin="8" />
<button id="OcrTest" text="点我测试" textSize="14sp" style="Widget.AppCompat.Button.Borderless.Colored" w="auto" />
</linear>
</vertical>
);
然后做了简单的UI

ui.OcrTest.click(function () {
try {
threads.start(function ()
{
console.log("getCodeCopy(DaMaUserName, DaMaPWD, CodeImg).data.res");
});
catch (error)
{
console.log(error);
}});
然后通过UI点击调用，就报错了

好像不能在ui里面进行json 操作，或者http 操作