031004 for 循环 (1)

# EXAMPLE_NUM01

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

# i 是一个 临时变量 从 0 开始循环
# range 相当于 变量的一组数据

# EXAMPLE_NUM02

age_of_oldboy = 56
for i in range(3):
    guess_age = int(input("guess age:"))    # input 输入默认为 字符串
    if guess_age == age_of_oldboy:
        print("yes, you got it.")
        break
    elif guess_age > age_of_oldboy:
        print("think smaller...")
    else:
        print("think bigger!")
else:   # else 相当于 代码正常走完了，如果不正常，则 break 了，就破坏循环，不执行了
    print("you have tried too many times...damn the hell")