@JellyBool 我的为什么回复代码没颜色

App\Article {#690
     published_at: Carbon\Carbon {#689
       +"date": "2015-10-11 14:46:10",
       +"timezone_type": 3,
       +"timezone": "UTC",
     },
     updated_at: "2015-10-11 14:46:10",
     created_at: "2015-10-11 14:46:10",
     id: 1,
   }

App\Article {#690
     published_at: Carbon\Carbon {#689
       +"date": "2015-10-11 14:46:10",
       +"timezone_type": 3,
       +"timezone": "UTC",
     },
     updated_at: "2015-10-11 14:46:10",
     created_at: "2015-10-11 14:46:10",
     id: 1,
   }

App\Article {#690
     published_at: Carbon\Carbon {#689
       +"date": "2015-10-11 14:46:10",
       +"timezone_type": 3,
       +"timezone": "UTC",
     },
     updated_at: "2015-10-11 14:46:10",
     created_at: "2015-10-11 14:46:10",
     id: 1,
   }

App\Article {#690
     published_at: Carbon\Carbon {#689
       +"date": "2015-10-11 14:46:10",
       +"timezone_type": 3,
       +"timezone": "UTC",
     },
     updated_at: "2015-10-11 14:46:10",
     created_at: "2015-10-11 14:46:10",
     id: 1,
   }

App\Article {#690
     published_at: Carbon\Carbon {#689
       +"date": "2015-10-11 14:46:10",
       +"timezone_type": 3,
       +"timezone": "UTC",
     },
     updated_at: "2015-10-11 14:46:10",
     created_at: "2015-10-11 14:46:10",
     id: 1,
   }

<?php
echo '为什么代码没有颜色';

<?php
echo '为什么代码没有颜色';

<?php
echo '为什么代码没有颜色';

<?php
echo '为什么代码没有颜色';

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<?php
echo '为什么代码没有颜色';
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