python多分支结构是什么

if <条件1> :

 <语句块1>

elif <条件2> :

 <语句块1>

……

else :

<语句块N>

print("输入成绩")

score = eval(input())

if score >=60 and score<80:

    print("恭喜，及格")

elif score >=80 and score<90:

    print("良好")

elif score >=90 and score<100:

    print("牛啊，优秀")

elif score == 100:

    print("逆天")

else:

    print("小老弟，你懂的")