表达式可以为:age<24 and total>285 and (mark1==100 or mark2 ==100 or mark3==10).补充如下:
age=18 mark1=99 mark2=100 mark3=89 total=mark1+mark2+mark3 excellent = age<24 and total>285 and (mark1==100 or mark2==100 or mark3==100) print(excellent)