Python基础之循环语句相关知识总结

# 死循环示例
while True:
 print("高山仰止，景行行止，虽不能至，心向往之。")

# while循环，有条件（列出一串数的示例）
i = 1
while i <= 100:
 print(i)
 i = i + 1

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

# 计算1-2+3-4+5-6+7.....-100 结果
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("请输入你要学习的内容：")
 if content == "ex":
  break
 print("认真做笔记:", content)

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

m = "我要学习python"
for i in m:
 print("这次循环得到的是：", 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('这是 pass 块')
 print('当前字母 :', letter)
print("Good bye!")