运行结果及报错内容
File "E:/02/爬虫/股票/收盘计算.py", line 520, in jisuan
if (df.shape[0] > 20) :
AttributeError: 'NoneType' object has no attribute 'shape'
File "E:/02/爬虫/股票/收盘计算.py", line 520, in jisuan
if (df.shape[0] > 20) :
AttributeError: 'NoneType' object has no attribute 'shape'