修复小数情况下给分曲线问题

stmms-web/src/main/webapp/WEB-INF/views/modules/exam/qualityChart.jsp

@@ -56,7 +56,10 @@ $.post('${ctx}/admin/exam/quality/getChart', {subjectCode: subjectCode,groupNumb
         var scorePercents= [];
 		
 		for(var j=0;j<= scores.length;j++){
-        	var key=scores[j]+".0";
+			var key = scores[j];
+			if(String(scores[j]).indexOf(".")==-1){
+	        	key=scores[j]+".0";
+			}
 			var percent = marker.scorePercent[key];
         	if(percent==undefined){
         		scorePercents.push(0);