python类型判断

class A:
a=1

if type(5) == int:
print "This is int"

if type("xxx") == str:
print "This is str"

if type(['a','b']) == list:
print "This is list"

if type({'a':1,'b':2}) == dict:
print "This is dict"

This is int
This is str
This is list
This is dict

class A:
    pass
b=A()
print type(A)
print type(b)
结果：
<type 'classobj'>
<type 'instance'>