摘要： If you terminate your app by pressing the home button (in the Simulator or on the device), your User Defaults will get saved.如果你按HOME键终止你的应用（真机或者模拟器上），你的值是会被保存的。If you terminate your app by pressing "Stop" in Xcode (in the Simulator or on the device), your User Defaultsmightget saved, but 阅读全文