【python人工智能】- 控制结构

1、for循环
举例1：for循环在列表对象l索引值为1-2上进行，功能是打印各个元素的平方
l = [1,2.5,‘data’]
for element in l[0:2]:
print(element ** 2)
执行结果：
1
6.25

举例2：基于计数器的循环
r = range(0,8,1)
print®
执行结果：range(0,8)

2、典型条件控制元素if、elif、else
举例1：取模运算
for i in range(1,10):
if i % 2 ==0:
print(“%d is even”% i)
elif i % 3 ==0:
print(“%d is multiple of 3” % i)
else :
print(“%d is odd” % i)
执行结果:
1 is odd
2 is even
3 is multiple of 3
4 is even
5 is odd
6 is even
7 is odd
8 is even
9 is multiple of 3

3、while流程控制
举例1：
total = 0
while total <=100:
total += 1
print(total)
执行结果：101