首页 > 代码库 > python 判断数据类型

python 判断数据类型

  1. import types  


  2. aaa = 0

  3. print type(aaa)  

  4. if type(aaa) is types.IntType:  

  5.    print "the type of aaa is int"  

  6. if isinstance(aaa,int):  

  7.    print "the type of aaa is int"  


  8. bbb = ‘hello‘

  9. print type(bbb)  

  10. if type(bbb) is types.StringType:  

  11.    print "the type of bbb is string"  

  12. if isinstance(bbb,str):  

  13.    print "the type of bbb is string"  


  14. #if the type is NoneType,the isinstance does not work  

  15. #we should judge the NoneType like below  

  16. #if row is None  

  17. #if type(row) is types.NoneType  


  18. #In my opinion,use the types to judge the type of a param is convinient<SPANstyle="BACKGROUND-COLOR: rgb(255,255,255); FONT-FAMILY: Arial">, use the isinstance to judge whether a instance is a type of a class or not</SPAN>


本文出自 “Bad-Kbase” 博客,请务必保留此出处http://bad51men.blog.51cto.com/3141086/1408899