一、控制器创建、视图传值（手动方式）与目录名称一一对应

1、在D:\www\laraver7\resources\views下创建test.blade.php文件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>测试手动创建</title>
</head>
<body>
<div>用户名为:{{$yhm}}</div>
<div>用户名是:<?php echo e($yhm); ?></div>
<div>用户名:<?php echo e($yhm) ;?></div>
<div>英文名：{!!$name!!}</div>
<div>年龄：<?php echo e($age) ;?></div>
<a href="http://www.php.cn" target="_blank">php中文网</a>
</body>
</html>

2、在D:\www\laraver7\app\Http\Controllers下面创建home.php文件

<?php
namespace App\Http\Controllers;
Class Home extends Controller{
    public function index(){
        echo 'she is home->index';
    }
    public function php(){
        // return 'this is melind';
        $username = '米亚';
        $data = ['yhm'=>$username,'name'=>'miya','age'=>20];
        $data['yhm'] = $username;
        $data['name'] = '<span style="color:red;">miya</span>';
        $data['age'] = 18;
        return view('test',$data);
        // return view('test',['bl'=>$username]);
    }
}

3、修改D:\www\laraver7\routes下的web.php文件

<?php
Route::get('/', function () {
    return view('test');
});
// 控制器到路由，如何映射刚才写的home.php里的内容? 
//要用@符号，指向index()或php()方法
Route::get('/home.html','Home@index');

二、视图中blade语法：if else 、switch、变量的输出方式

修改test.blade.php文件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>测试手动创建</title>
</head>
<body>
<div>
@if($yhm)
<div>用户名字是：{{$yhm}}</div>
@else
<a href="">登录</a>
@endif
</div>
<div>用户名为:{{$yhm}}</div>
<div>用户名是:<?php echo e($yhm); ?></div>
<div>用户名:<?php echo e($yhm) ;?></div>
<div>英文名：{!!$name!!}</div>
<div>年龄：<?php echo e($age) ;?></div>
<a href="http://www.php.cn" target="_blank">php中文网</a>
<div>
@switch($age)
@case(15)
<div style="color: red;">未成年</div>
@break
@case(18)
<div style="color: green;">成年了</div>
@break
@endswitch
</div>
</body>
</html>