StudentName = input("请输入学生姓名:")
Chinese = float(input("语文成绩:"))
Mathematical = float(input("数学成绩:"))
English = float(input("英语成绩:"))
print(f"{StudentName}的平均成绩为:{round((Chinese+Mathematical+English)/3,1)}")
print(f"{StudentName}的语文成绩占成绩的比重{round(Chinese/(Chinese+Mathematical+English),4)*100}%")