{"action":"opened","issue":{"url":"https://api.github.com/repos/yyx990803/vue/issues/1351","labels_url":"https://api.github.com/repos/yyx990803/vue/issues/1351/labels{/name}","comments_url":"https://api.github.com/repos/yyx990803/vue/issues/1351/comments","events_url":"https://api.github.com/repos/yyx990803/vue/issues/1351/events","html_url":"https://github.com/yyx990803/vue/issues/1351","id":107870882,"number":1351,"title":"关于绑定表达式作用及表现","user":{"login":"byr-gdp","id":9307206,"avatar_url":"https://avatars.githubusercontent.com/u/9307206?v=3","gravatar_id":"","url":"https://api.github.com/users/byr-gdp","html_url":"https://github.com/byr-gdp","followers_url":"https://api.github.com/users/byr-gdp/followers","following_url":"https://api.github.com/users/byr-gdp/following{/other_user}","gists_url":"https://api.github.com/users/byr-gdp/gists{/gist_id}","starred_url":"https://api.github.com/users/byr-gdp/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/byr-gdp/subscriptions","organizations_url":"https://api.github.com/users/byr-gdp/orgs","repos_url":"https://api.github.com/users/byr-gdp/repos","events_url":"https://api.github.com/users/byr-gdp/events{/privacy}","received_events_url":"https://api.github.com/users/byr-gdp/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-09-23T08:19:55Z","updated_at":"2015-09-23T08:19:55Z","closed_at":null,"body":"重现地址：https://jsfiddle.net/p7vjf4ak/\r\n\r\n[教程](http://cn.vuejs.org/guide/forms.html)中关于绑定表达式部分的讲述没有让我理解其作用是什么。\r\n\r\n尝试了下加入`true-exp` `false-exp`以及`exp`，但我不知道这些值如何才能正确输出，通过`{{...}}`形式还是其他方式呢？\r\n\r\n同时，在加入`true-exp` `false-exp`以及`exp`后，与未加入相比，甚至连正常的`{{...}}`会没有输出。\r\n\r\n可能表述不是那么清楚，重现地址多点击几次也许可以发现。\r\n\r\n:)"}}