python遍历 truple list dictionary的几种方法

def TestDic1():
    dict2 ={'aa':222,11:222}
    for val in dict2:
        print val
def TestDic2():
    dict2 ={'aa':222,11:222}
    for (key,val) in dict2.items():
        print key,":",val      
def TestList1():
    list=[1,2,3,4,5,3,2,'ada','fs3']
    for i in range(len(list)):
        print list[i]
def  TestDic3():
    dict2 ={'aa':222,11:222}
    print "###########iteritems#################"
    for k,v in dict2.iteritems():
        print "dict[%s]=" % k,v
def  TestDic4():
    dict2 ={'aa':222,11:222}
    print "###########iterkeys,itervalues#######"
    for k,v in zip(dict2.iterkeys(),dict2.itervalues()):
        print "dict[%s]=" % k,v        
def TestList2():
    list=[1,2,3,4,5,3,2,'ada','fs3']
    for i in list:
        print i