<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <title></title> <script type="text/javascript" src="./vue.min.js"></script> </head> <body> <div v-for="i in json">{{$key}}=>{{i}}=>{{$index}}</div> <script type="text/javascript"> new Vue( { el:'body', data:{ arr:['a','b','c'], json:{ leo:'12', sky:'22', mot:'33' } } } ); </script> </body> </html>
解释：
键名：{{KaTeX parse error: Expected 'EOF', got '}' at position 4: key}̲} 键值：{{i}} 键索引：…index}}
效果：
