<div class="nav">
    		<div class="logo">
    			<img src="data:image/png;base64,[encoded data, 10740 characters]" width="50" >
    			您好，{{data['setting']['userInfo']['username']}}
    		</div>
    		<ul>
    			<li {% if 'cur' in data['setting'] and data['setting']['cur'] == 'main' %}class="cur"{% end %}>
    				<a href="/">
    					<i class="icons ico-nav-1"></i>
    					农场介绍
    				</a>
    			</li>
    			<li {% if 'cur' in data['setting'] and data['setting']['cur'] == 'device' %}class="cur"{% end %}>
    				<a href="/device">
    					<i class="icons ico-nav-2"></i>
    					设备管理
    				</a>
    			</li>
    			<li {% if 'cur' in data['setting'] and data['setting']['cur'] == 'work' %}class="cur"{% end %}>
    				<a href="/work">
    					<i class="icons ico-nav-3"></i>
    					农事管理
    				</a>
    			</li>
    			<li {% if 'cur' in data['setting'] and data['setting']['cur'] == 'origin' %}class="cur"{% end %}>
    				<a href="/origin">
    					<i class="icons ico-nav-4"></i>
    					食品溯源
    				</a>
    			</li>
    		</ul>
    	</div>