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				@@ -168,14 +168,18 @@ 
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				       <!-- 
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				       <button type="button" class="btn btn-primary btn-block mb-4 ripple-surface">Place order</button> 
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				 --> 
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				+<div id="main" style="width: 600px;height:400px;"></div> 
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				+ 
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				+ 
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				     </div> 
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				   </div> 
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				+ 
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				+ 
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				 </div> 
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				-<div id="main" style="width: 600px;height:400px;"></div> 
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				@@ -183,24 +187,22 @@ 
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				 <script> 
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				         var myChart = echarts.init(document.getElementById('main')); 
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				-        var option = { 
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				-            title: { 
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				-                text: 'ECharts 入门示例' 
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				-            }, 
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				-            tooltip: {}, 
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				-            legend: { 
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				-                data:['销量'] 
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				-            }, 
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				-            xAxis: { 
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				-                data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"] 
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				-            }, 
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				-            yAxis: {}, 
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				-            series: [{ 
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				-                name: '销量', 
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				-                type: 'bar', 
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				-                data: [5, 20, 36, 10, 10, 20] 
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				-            }] 
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				-        }; 
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				+        var option; 
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				+option = { 
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				+    xAxis: { 
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				+        type: 'category', 
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				+        boundaryGap: false, 
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				+        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] 
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				+    }, 
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				+    yAxis: { 
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				+        type: 'value' 
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				+    }, 
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				+    series: [{ 
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				+        data: [820, 932, 901, 934, 1290, 1330, 1320], 
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				+        type: 'line', 
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				+        areaStyle: {} 
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				+    }] 
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				+}; 
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				         myChart.setOption(option); 
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