26 lines
623 B
JavaScript
26 lines
623 B
JavaScript
function loadTracks() {
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return new Promise((resolve) => {
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setTimeout(() => {
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resolve(["模板字符串", "模块化", "async/await"]);
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}, 700);
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});
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}
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// 任务：
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// 1. 调用 loadTracks()
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// 2. 成功时更新状态和输出内容
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// 3. 失败时更新状态
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async function load() {
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const status = document.getElementById("status")
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status.textContent = "加载中"
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try {
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const a = await loadTracks()
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status.textContent = "加载成功"
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const output = document.getElementById("output")
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output.textContent = a
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} catch (error) {
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status.textContent = "加载失败"
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}
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}
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load() |