我嘗試計算學(xué)生的幾個屬性：學(xué)生人數(shù)學(xué)生的總分他們獲得的最低、平均和最高分。然而，該變量mark僅顯示 0。如何使用函數(shù)而不是 max() 和 min() 來解決這個問題？mark = 0a = 0student = 0a = int(input("Enter Marks :"))def maxx(): maxx = 0 for i in range(1, a): if a> maxx : maxx = a return maxxdef minn(): minn = 0 for i in range(1, a): if a < minn : minn = a return minnwhile (a >= 0): mark = mark + a student = student + 1 a = int(input("Enter Marks :"))print("Exit")print("Total students :", student)print ("The total marks is:", mark)average = mark/studentprint ("The average marks is:", average)print("The max marks is :", maxx())print("The min marks is :", minn())
1 回答
慕哥9229398
TA貢獻1877條經(jīng)驗 獲得超6個贊
你的代碼有很多問題。其中之一是
for i in range(1, a):
如果您想要最小值或最大值，這部分沒有意義。您需要遍歷成績列表。
mark并且student考慮到它們可以分別替換為sum和，也是不必要的len。
整個代碼似乎缺乏適當?shù)慕Y(jié)構(gòu)。這是一個示例實現(xiàn)。如果不允許使用sumor len，您可以將自己的mark和student方法帶回來，但盡量不要弄亂并保持可讀性：
def maxx(grades):
if (not grades): # if empty, we let the caller know
return None
res = grades[0] # we know the list is not empty
for i in grades:
if i > res:
res = i
return res
def minn(grades):
if (not grades):
return None
res = grades[0]
for i in grades:
if i < res:
res = i
return res
def main():
grades = [] # list of grades
while (True):
grade = int(input("Enter Mark: "))
if (grade < 0): break
grades.append(grade)
student_cnt = len(grades)
total = sum(grades)
print("Exit")
print("Total students :", student_cnt)
print("The total marks is:", total)
print ("The average marks is:", total / student_cnt)
print("The max marks is :", maxx(grades))
print("The min marks is :", minn(grades))
if __name__ == "__main__":
main()
輸入輸出：
Enter Mark: 30
Enter Mark: 20
Enter Mark: 10
Enter Mark: 40
Enter Mark: -1
Exit
Total students : 4
The total marks is: 100
The average marks is: 25.0
The max marks is : 40
The min marks is : 10
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