在网上搜索后，把and改成&，每个条件都加了括号，还不中，请帮助解决

Traceback (most recent call last):
File “D:/Q_YANGL/TQ_MA/1020j均线.py”, line 85, in <module>
if (Dd_1 == 0) & (kb > 0) & (c12 < 51) & (m1 > m2) & (c1 > m2) & (m1 > m3):
File “C:\ProgramData\Anaconda3\lib\site-packages\pandas\core\generic.py”, line 1537, in __nonzero__
raise ValueError(
ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().