問題：
I've read the AngularJS documentation on the topic carefully, and then fiddled around with a directive.我仔細閱讀了有關該主題的AngularJS文檔，然後擺弄了一條指令。 Here's the fiddle .這是小提琴。
And here are some relevant snippets:這裏有一些相關的片段：
From the HTML :從HTML ：
<pane bi-title="title" title="{{title}}">{{text}}</pane>From the pane directive:從窗格指令：
scope: { biTitle: '=', title: '@', bar: '=' },
There are several things I don't get:有幾件事我沒有得到：
- Why do I have to use
"{{title}}"with'@'and"title"with'='?爲什麼我必須使用帶有'@'"{{title}}"和帶有'='"title"？ - Can I also access the parent scope directly, without decorating my element with an attribute?我也可以直接訪問父作用域，而不用屬性裝飾我的元素嗎？
- The documentation says "Often it's desirable to pass data from the isolated scope via expression and to the parent scope" , but that seems to work fine with bidirectional binding too.文檔說“通常需要通過表達式將數據從隔離範圍傳遞到父範圍” ，但這似乎也適用於雙向綁定。 Why would the expression route be better?爲什麼表達路線會更好？
I found another fiddle that shows the expression solution too: http://jsfiddle.net/maxisam/QrCXh/我發現了另一個顯示錶達式解決方案的小提琴： http : //jsfiddle.net/maxisam/QrCXh/
解決方案：
參考一： https://en.stackoom.com/question/wx63參考二： https://stackoom.com/question/wx63