一、条件判断
age = 2
if age < 0:
print("你是在逗我吧!")
elif age == 1:
print("相当于 14 岁的人。")
elif age == 2:
print("相当于 22 岁的人。")
elif age > 2:
human = 22 + (age -2)*5
print("对应人类年龄: ", human)
二、for循环
sites = ["Baidu", "Google","Runoob","Taobao"]
for site in sites:
if site == "Google":
print("谷歌!")
break # 跳出循环,可以使用 break 跳出循环
print("循环数据 " + site)
else:
print("没有循环数据!")
print("完成循环!")
三、while循环
count = 0
while count < 5:
print (count, " 小于 5")
count = count + 1
else:
print (count, " 大于或等于 5")
四、range()函数生成数列
for i in range(0, 10, 3) : # 指定步长
print(i)
a = ['Google', 'Baidu', 'Runoob', 'Taobao', 'QQ']
for i in range(len(a)):
print(i, a[i])
五、本节demo运算结果: