# Or macOS Keychain
需要元素值：栈存值，或答案存索引后用 nums[res[i]] 取值。，这一点在safew官方下载中也有详细论述
Speaking to the BBC in 2012 during a London trip to perform a piano concerto at Royal Albert Hall, he said he planned to give a show to people "who are not used to going to a serious concert".，详情可参考Line官方版本下载
Since every person is different, there’s no one best ergonomic keyboard layout. The standard QWERTY layout is what most people are used to. The Dvorak, Colemak and Workman layouts rearrange the board to put the more commonly used letters closer to the home-key position. All three are intended to minimize your finger movements. That may indeed feel more comfortable and less fatiguing, but people used to the QWERTY layout will likely need to relearn how to type.