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# 设置快捷键
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## 定义快捷键
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```js
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// 定义a快捷键
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hotkeys('a', function(){ alert('你按下了 a!') });
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// 返回false将停止活动,并阻止默认浏览器事件
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hotkeys('ctrl+r', function(){ alert('停止刷新!'); return false });
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// 多个快捷方式做同样的事情
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hotkeys('⌘+r, ctrl+r', function(){ });
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```
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## 支持的键
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`⇧`, `shift`, `option`, `⌥`, `alt`, `ctrl`, `control`, `command`, `⌘`。
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`⌘` Command()
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`⌃` Control
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`⌥` Option(alt)
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`⇧` Shift
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`⇪` Caps Lock(大写)
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`fn` 功能键就是fn
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`↩︎` return/Enter
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## 修时键判断
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可以对下面的修饰键判断 `shift` `alt` `option` `ctrl` `control` `command`
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```js
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if(hotkeys.shift) console.log('大哥你摁下了shift键!');
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```
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## 切换快捷键
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```js
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// 一个快捷键,有可能干的活儿不一样哦
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hotkeys('o, enter', 'issues', function(){ /* 干点活儿 */ });
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hotkeys('o, enter', 'files', function(){ /* 另一种活儿 */ });
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// 设定范围scope
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hotkeys.setScope('issues'); // 默认所有事儿都干哦
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```
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## 兼容模式
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```js
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var k = hotkeys.noConflict();
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k('a', function() {
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console.log("这里可以干一些事儿")
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});
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hotkeys()
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// -->Uncaught TypeError: hotkeys is not a function(anonymous function) @ VM2170:2InjectedScript._evaluateOn @ VM2165:883InjectedScript._evaluateAndWrap @ VM2165:816InjectedScript.evaluate @ VM2165:682
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```
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