def get_slice_start(self):
        """
        返回queryset切片的头
        """
        value = None
        if self.easyui_page:
            value = (self.easyui_page -1) * self.easyui_rows
        return  value
def get_slice_start(self):
        """
        返回queryset切片的头
        """
        value = None
        if self.easyui_page:
            value = (self.easyui_page -1) * self.easyui_rows
        return  value
def get_slice_start ( self ) : value = None if self . easyui_page : value = ( self . easyui_page - 1 ) * self . easyui_rows return value
返回queryset切片的头
返回queryset切片的头