<block source="{'name':'zhangsan', 'age':19, 'color': 'green'}" wait="wanger">
                <div :style="'color:'+color">{{ name }} before {{ $block.wanger.name }}</div>
            </block>
            

            <block source="{'name':'wanger', 'age':21, 'color': 'blue', 'class': 'black'}" id="wanger">
                <div :style="'color:'+color" :class="$block.wanger.class">{{ name }}</div>
                <block source="{'name':'mazi', 'age':22, 'color': 'green'}">
                    <div :style="'color:'+color">{{ name }} in {{ $block.wanger.name }}</div>
                </block>
            </block>
            

            <block source="{'name':'lisi', 'age':20, 'color': 'red'}">
                <div :style="'color:'+color">{{ name }} after {{ $block.wanger.name }}</div>
            </block>