diff --git a/src/main/java/com/example/testlibrary/SanBezier.java b/src/main/java/com/example/testlibrary/SanBezier.java
new file mode 100644
index 0000000..2155f18
--- /dev/null
+++ b/src/main/java/com/example/testlibrary/SanBezier.java
@@ -0,0 +1,111 @@
+package com.example.testlibrary;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.PointF;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+
+/**
+ * Created by 极速蜗牛 on 2017/6/14 0014.
+ */
+
+public class SanBezier extends View {
+
+    Paint mPaint;
+
+    int centX, centY;
+    PointF start, end, cont1, cont2;
+    boolean flag = true;
+
+    public void setChoice(boolean flag) {
+        this.flag = flag;
+    }
+
+
+    @Override
+    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+        super.onSizeChanged(w, h, oldw, oldh);
+        centX = w / 2;
+        centY = h / 2;
+
+        start.x = centX + 200;
+        start.y = centY;
+
+        end.x = centX - 200;
+        end.y = centY;
+
+        cont1.x = centX + 200;
+        cont1.y = centY + 200;
+
+        cont2.x = centX - 200;
+        cont2.y = centY + 200;
+
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        if (event.getAction() == MotionEvent.ACTION_MOVE) {
+            if (flag) {
+                cont1.x = event.getX();
+                cont1.y = event.getY();
+            } else {
+                cont2.x = event.getX();
+                cont2.y = event.getY();
+            }
+        }
+        invalidate();
+        return true;
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+
+        canvas.drawPoint(start.x, start.y, mPaint);
+        canvas.drawPoint(end.x, end.y, mPaint);
+        canvas.drawPoint(cont1.x, cont1.y, mPaint);
+        canvas.drawPoint(cont2.x, cont2.y, mPaint);
+
+        mPaint.setColor(Color.BLACK);
+        mPaint.setStrokeWidth(5);
+        canvas.drawLine(start.x, start.y, cont1.x, cont1.y, mPaint);
+        canvas.drawLine(end.x, end.y, cont2.x, cont2.y, mPaint);
+        canvas.drawLine(cont1.x, cont1.y, cont2.x, cont2.y, mPaint);
+
+        Path path = new Path();
+        path.moveTo(start.x, start.y);
+        path.cubicTo(cont1.x, cont1.y, cont2.x, cont2.y, end.x, end.y);
+
+        canvas.drawPath(path, mPaint);
+    }
+
+    public SanBezier(Context context) {
+        this(context, null);
+    }
+
+    public SanBezier(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public SanBezier(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+
+    private void init() {
+        mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+        mPaint.setColor(Color.BLUE);
+        mPaint.setStrokeWidth(10);
+        mPaint.setStyle(Paint.Style.STROKE);
+
+        start = new PointF(0, 0);
+        end = new PointF(0, 0);
+        cont1 = new PointF(0, 0);
+        cont2 = new PointF(0, 0);
+    }
+}