JavaScript 30 JSON 02

<script>
 
var heros=
[
    {"name":"盖伦","hp":616},
    {"name":"提莫","hp":313},
    {"name":"死歌","hp":432},
    {"name":"火女","hp":389}
]
 
document.write("JSON数组大小"+heros.length);
 
</script>

<script>
  
var heros=
[
    {"name":"盖伦","hp":616},
    {"name":"提莫","hp":313},
    {"name":"死哥","hp":432},
    {"name":"火女","hp":389}
]
  
document.write( "第4个英雄是:" +  heros[3].name);
  
</script>