# 死循環(huán)示例
while True:
    print("高山仰止，景行行止，雖不能至，心向往之。")

# while循環(huán)，有條件（列出一串?dāng)?shù)的示例）
i = 1
while i <= 100:
    print(i)
    i = i + 1

# 要求從1加到100
h = 0
i = 1
while i <= 100:
    h = h + i
    i = i + 1
print(h)

# 計(jì)算1-2+3-4+5-6+7.....-100 結(jié)果
h = 0
i = 1
while i <= 100:
    m = i % 2
    if m == 1:
        h = h + i
    else:
        h = h - i
    i = i + 1
print(h)

while True:
    content = input("請(qǐng)輸入你要學(xué)習(xí)的內(nèi)容：")
    if content == "ex":
        break
    print("認(rèn)真做筆記:", content)

i = 1
while i <= 10:
    if i == 4:
        i = i +1
        continue
    print(i)
    i = i + 1

m = "我要學(xué)習(xí)python"
for i in m:
    print("這次循環(huán)得到的是：", i)

for i in range(8):
    print(i)

for i in range(1,9):
    print(i)

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

for letter in 'Python':
    if letter == 'h':
        pass
        print('這是 pass 塊')
    print('當(dāng)前字母 :', letter)

print("Good bye!")