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@yangzai 太感谢了!!原来这么简单我真是笨死了
"ui"; ui.layout( <vertical padding="16"> <button id="click_me" text="点我" w="auto"/> </vertical> ); ui.click_me.on("click", ()=>{ toast("第一次点输出:我被点啦"); //如果第二次点我想输出:第二次被点应该怎么办? });