报错：AttributeError: '_csv.reader' object has no attribute 'next'
原因：python版本问题
解决：将headers = reader.next()改为headers = next(reader)
报错：_csv.Error: iterator should return strings, not bytes (did you open the file in text mode?)
原因：csv文件并非二进制文件， 只是一个文本文件
解决：将allElectronicsData = open(r'F:/txt/AllElectronics.csv', 'rb')改成allElectronicsData = open(r'F:/txt/AllElectronics.csv', 'rt')
报错：ValueError: Expected 2D array, got 1D array instead
原因：数据维度不对，将其通过reshape进行转化
解决：将predictedY = clf.predict(newRowX)改成predictedY = clf.predict(newRowX.reshape(1,-1))