修改打印之前和打印之后的图片背景

src/main/webapp/static/pages/scripts/echart.js

@@ -1,4 +1,15 @@
-
+	Highcharts.setOptions({ // Apply to all charts
+		chart: {
+			events: {
+				beforePrint: function () {
+					$(".highcharts-background").attr("fill","rgba(48,48,48,1)")
+				},
+				afterPrint: function () {
+					$(".highcharts-background").attr("fill","rgba(255, 255, 255, 0)")
+				}
+			}
+		}
+	});
 
     //协议统计分析
     function echart_1(rs) {
@@ -340,7 +351,7 @@
     			name: ' ',
     			colorByPoint: true,
     			data: data
-    		}],
+    		}]
 //    			drilldown:{
 //    				activeAxisLabelStyle:{
 //    					textDecoration:'none',