请问如何计算表中的所有字段？

我想要快捷地把所有字段按照我的需求计算，比如批量替换每个字段值中的“1”为“2”，或者将每个字段都为“6666”.
附件的图片是我试验性地写的一段脚本，我不知道哪里不对。或者，是否有更合理的方法，能否写一段举个例子说明？
谢谢！
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>>> link = r'C:\Users\shinelon\Desktop\处理自然幢1-3\原始自然幢.shp'

>>> ziduan_name = [a.name for a in arcpy.ListFields(link)]

>>> print ziduan_name

[u'FID', u'Shape', u'OBJECTID_1', u'ObjectId', u'Bsm', u'Ysdm', u'Bdcdyh', u'Zddm', u'Zrzh', u'Xmmc', u'Jzwmc', u'Jgrq', u'Ghyt', u'Jzwjbyt', u'Fwjg', u'Zzdmj', u'Scjzmj', u'Zydmj', u'Ycjzmj', u'Zts', u'Zcs', u'Dscs', u'Dxcs', u'Dah', u'Bz', u'JZWGD', u'MJDW', u'DXSD', u'TDYT', u'shape_Leng', u'shape_Area', u'ZJWLS']

>>> for link in ziduan_name :

...     arcpy.CalculateField_management(link,ziduan_name,"6666","VB","")

...     

Runtime error 

Traceback (most recent call last):

  File "<string>", line 2, in <module>

  File "c:\program files (x86)\arcgis\desktop10.2\arcpy\arcpy\management.py", line 3183, in CalculateField

    raise e

RuntimeError: Object: \u6267\u884c\u5de5\u5177\u65f6\u51fa\u9519

>>>