Python快速入门——常用语句

和别的语言没什么太大区别，就是后面加了一个冒号

增加了elif语句

while和for语句后面也可以添加else语句

if 1<2:
    print(True)

if 1<2:
    print(True)
else:
    print(False)

a = 0
if a == 1:
    print(1)
elif a == 2:
    print(2)
elif a == 3:
    print(3)

while a == 0:
    print(0)

a = [1,2,3]
for i in a:
    print(i)

while a == 0:
    print(0)
else:
    print("abc")

a = [1,2,3]
for i in a:
    print(i)
else:
    print("abc")