序列和字典遍历

序列和字典的迭代遍历

python代码如下

#!/usr/bin/python# -*-coding:utf-8-*-#除字典以外，字符串，列表，元组都可以称为序列s = "hello"#l是列表l = [1, 2, 3, 'a', 'b']#t是元组t = (7, 8, 9, 'x', 'y')#d是字典d = {1:111, 2:222, 5:555, 3:333}#print '开始遍历列表l:', '\n'#for x in l:#    if x >= 2:#        print x#print '开始遍历字符串s:', '\n'#for x in range(len(s)):#    print s[x]for x in d:print x, ':', d[x]#print d.items()for k, v in d.items():    print k, v