最大最小值
示例一：
MAXIMUM = lambda x,y : (x > y) * x + (x < y) * y #注意(x > y) 返回的是0或者1
MINIMUM = lambda x,y : (x > y) * y + (x < y) * x
a = 10
b = 20
print 'The largar one is %d' % MAXIMUM(a,b)
print 'The lower one is %d' % MINIMUM(a,b)
示例二：
a = 10
b = 20
print 'The largar one is %d' % max(a,b) #注意不支持大写的MAX/MIN
print 'The lower one is %d' % min(a,b)
max/min用法：
普通用法：
a = 10
b = 20
print 'The largar one is %d' % max(a,b,5)
print 'The lower one is %d' % min(a,b,5)
输出：
The largar one is 20
The lower one is 5
数组提取：
a=[1,2,35]
print 'The largar one is %d' % max(a)
print 'The lower one is %d' % min(a)
输出：
The largar one is 35
The lower one is 1
含key用法：
max(iterable, key, default) 求迭代器的最大值，其中iterable 为迭代器，max会for i in … 遍历一遍这个迭代器，然后将迭代器的每一个返回值当做参数传给key=func 中的func(一般用lambda表达式定义) ，然后将func的执行结果传给key，然后以key为标准进行大小的判断。
d1 = {'name': 'egon', 'price': 100}
d2 = {'name': 'rdw', 'price': 666}
d3 = {'name': 'zat', 'price': 1}
l1 = [d1, d2, d3]
a = max(l1, key=lambda x: x['name'])
print(a)
b = max(l1, key=lambda x: x['price'])
print(b)
输出：
{'price': 1, 'name': 'zat'}
{'price': 666, 'name': 'rdw'}