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启mac，按住commond + R直到屏幕上出现苹果的标志和进度条，进入Recovery模式； 在屏幕最上方的工具栏找到实用工具（左数第3个），打开终端，输入：csrutil disable ；关掉终端，重启mac；重启以后就可以正常安装了。
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<!DOCTYPE html> <body> <pre id="rabbit"> |\ /| \|_|/ /. .\ =\_Y_/= {>o<} </pre > <button onclick="hide()">Hide()</button> <script> async function delay(s) { await new Promise((resolve) => { setTimeout(resolve, s * 1000); }); console.log('delay finished: ', s); } function hide() { let event = new CustomEvent('hide', { cancelable: true, }); if (!rabbit.dispatchEvent(event)) { console.log('The action was prevented by a handler'); } else { rabbit.hidden = true; console.log('Hide'); } } async function handler(event) { if (confirm('Call preventDefault?')) { await delay(5); event.preventDefault(); // await delay(5); } console.log('handler finished'); } rabbit.addEventListener('hide', handler); </script> </body> -
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<iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width=330 height=86 src="//music.163.com/outchain/player?type=2&id=1838343929&auto=1&height=66"></iframe>http://music.163.com/outchain/player?type=2&id=1838343929&auto=1&height=66
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