Created by: brodra

PaddleCV/Research/astar2019/reader.py中第74行有一处bug，代码如下

    @property
    def apply_distort(self):    # line 74: 按功能，此处应该是 def apply_expand(self):
        return self._apply_expand

    @property
    def apply_distort(self):
        return self._apply_distort