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@@ -10,6 +10,7 @@
 #import "PNColor.h"
 #import "PNColor.h"
 #import "PNChartLabel.h"
 #import "PNChartLabel.h"
 
 
+#define defaultYSum 0   //默认的Y显示值的个数,
 
 
 @interface PNBarChart () {
 @interface PNBarChart () {
     NSMutableArray *_xChartLabels;
     NSMutableArray *_xChartLabels;
@@ -70,7 +71,11 @@
 
 
     //make the _yLabelSum value dependant of the distinct values of yValues to avoid duplicates on yAxis
     //make the _yLabelSum value dependant of the distinct values of yValues to avoid duplicates on yAxis
     int yLabelsDifTotal = (int)[NSSet setWithArray:yValues].count;
     int yLabelsDifTotal = (int)[NSSet setWithArray:yValues].count;
+  
+    // !!!: 调整Y坐标的显示值
+    if (_yLabelSum==defaultYSum) {
         _yLabelSum = yLabelsDifTotal % 2 == 0 ? yLabelsDifTotal : yLabelsDifTotal + 1;
         _yLabelSum = yLabelsDifTotal % 2 == 0 ? yLabelsDifTotal : yLabelsDifTotal + 1;
+    }
   
   
     if (_yMaxValue) {
     if (_yMaxValue) {
         _yValueMax = _yMaxValue;
         _yValueMax = _yMaxValue;
@@ -86,9 +91,35 @@
     
     
     if (_showLabel) {
     if (_showLabel) {
         //Add y labels
         //Add y labels
-        
       float yLabelSectionHeight = (self.frame.size.height - _chartMargin * 2 - kXLabelHeight) / _yLabelSum;
       float yLabelSectionHeight = (self.frame.size.height - _chartMargin * 2 - kXLabelHeight) / _yLabelSum;
       
       
+      // !!!: 用户自行修改Y轴坐标值
+      if (_yLabels) {
+        
+        [self getYValueMax:_yLabels];
+        
+        for (int i=0; i<_yLabels.count; i++) {
+          float yAsixValues=[[_yLabels objectAtIndex:_yLabels.count-i-1] floatValue];
+          NSString *labelText= _yLabelFormatter(yAsixValues);
+          
+          
+          
+          PNChartLabel * label = [[PNChartLabel alloc] initWithFrame:CGRectMake(0,
+                                                                                yLabelSectionHeight * i + _chartMargin - kYLabelHeight/2.0,
+                                                                                _yChartLabelWidth,
+                                                                                kYLabelHeight)];
+          label.font = _labelFont;
+          label.textColor = _labelTextColor;
+          [label setTextAlignment:NSTextAlignmentRight];
+          label.text = labelText;
+          
+          [_yChartLabels addObject:label];
+          [self addSubview:label];
+          
+        }
+        
+      }else{
+
                for (int index = 0; index < _yLabelSum; index++) {
                for (int index = 0; index < _yLabelSum; index++) {
             
             
             NSString *labelText = _yLabelFormatter((float)_yValueMax * ( (_yLabelSum - index) / (float)_yLabelSum ));
             NSString *labelText = _yLabelFormatter((float)_yValueMax * ( (_yLabelSum - index) / (float)_yLabelSum ));
@@ -107,6 +138,7 @@
             
             
         }
         }
       }
       }
+    }
 }
 }
 
 
 -(void)updateChartData:(NSArray *)data{
 -(void)updateChartData:(NSArray *)data{