3.初探python之循环

1.输出1-100：

for循环：

for i in range(1,101):
    print(i)

while循环：

num = 1
while num <101:
    print(num)
    num += 1

2.输出1-100的奇数

for i in range(1,101,2):
    print(i)

for i in range(1,100):
    if i%2 != 0:
         print(i) 

3.输出1-100，其中50-70不输出

for i in range(1,101):
    if i > 70 or i <50:
        print(i)

4.break和continue

break 跳出整个当前的循环

continue 结束本次循环，继续下次循环

例子：

for i in range(10):
    if i < 6:
        continue
    print(i)
    for j in range(10):
        print("j=",j)
        if j == 6:
            break