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问题 : 异步操作成功之后(一个命令调用了后端api之后), 输入框虽处于聚焦状态, 但是光标不进行显示。
经过调试和网络搜索, 我发现问题很可能是由于异步操作影响了DOM元素的焦点状态,如果使用 setTimeout 来延迟设置输入框的焦点,就能有效地解决光标不显示的问题。setTimeout提供了足够的时间让浏览器处理完异步任务并重新渲染UI,从而恢复输入框的正常焦点状态和光标显示。
由于我们调用命令是要进行输出的, 因为我们就在终端的writeTextResult函数最后通过setTimeout(delay设置为0)调用终端的focusInput()方法, 之后再次执行命令, 光标成功显示。