循环

count = 0
while True:
    print(count)
    count = count + 1 # count += 1
    if count == 100:
    break

while count < 101:
    if count > 10:
    continue
    print(count)
    count += 1


for i in range(10):
    print("loop:", i)

for i in range(0, 10, 2): # 0:起始位置 10:个数 2:步长
    print("loop:", i)

for i in range(1, 10, 2):
    print("loop:", i)