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控制台报错:org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement ‘com.spbt.mapper.EmpeeMapper.selectName’. It’s likely that neither a Result Type nor a Result Map was s <weixin_38712279> 上传 | 大小:188kb
说明:1. mean() 函数定义:
numpy.mean(a, axis=None, dtype=None, out=None, keepdims=)[source]
Compute the arithmetic mean along the specified axis.
Returns the average of the array elements. The average is taken over the flattened array by default, otherwise <weixin_38587473> 上传 | 大小:50kb