Vue.js 0.12.0 RC2 发布，此版本更新内容如下： Support staggering transitions for v-repeat. demo Simply add a stagger attribute Support expressions in content selectors. (resolved only once) v-class can now accept an object value. The keys will be used as class names and toggled based on the truthy-ness of the value. Warnings in debug mode now prints the error stack instead of invoking the debugger statement. 其他重要改进 When v-ref is used together with v-repeat, and the value being repeated on is an Object, the corresponding ref will also be an Object, with its keys pointing to the associated child instances. Transition cancel hook: you can now use enterCancelled and leaveCancelled hooks to handle a cancelled transition. Functions returned in enter and leave hooks are no longer respected. Bug 修复 #887, #892, #893 更多内容请看发行说明。 此版本现已提供下载：https://github.com/yyx990803/vue/archive/0.12.0-rc2.zip。 Vue.js 是构建 Web 界面的 JavaScript 库，提供数据驱动的组件，还有简单灵活的 API，使得 MVVM 更简单。 支持的浏览器：https://saucelabs.com/u/vuejs Vue.js 0.12.0 RC2 发布，JavaScript 库下载地址
