# 利用 for 循环打印 1 ~ 10
# for i in range(1, 11):
#     print(i)

# 利用 for 循环打印 2, 4, 6, 8, 10
# for i in range(2, 12, 2):
#     print(i)

# 利用 for 循环打印 10 ~ 1
# for i in range(10, 0, -1):
#     print(i)

# total = 0
# for i in range(1, 101):
#     total += i
# print(f"total = {total}")

# total = 0
# for i in range(1, 5):
#     if i == 3:
#         continue
#     total += i
# print(f"total = {total}")

total = 0
for i in range(1, 5):
    if i == 3:
        break
    total += i
print(f"total = {total}")