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'}