Python中如何将5个测试分数传入函数，输出对应等级并计算平均分

Hey there! Let's get this sorted out. Here's a straightforward way to create a function that takes 5 test scores, outputs each one's letter grade, and calculates the average.

Option 1: Using a List (Flexible for Any Number of Scores) #

This approach uses a list to hold the scores, making it easy to adjust if you ever need more than 5 scores later:

def calculate_grades(scores):
    # Calculate and display the average
    average_score = sum(scores) / len(scores)
    print(f"Your test score average is: {average_score:.2f}")
    
    # Loop through each score to determine its letter grade
    for score in scores:
        if score >= 90:
            letter = "A"
        elif score >= 80:
            letter = "B"
        elif score >= 70:
            letter = "C"
        elif score >= 60:
            letter = "D"
        else:
            letter = "F"
        print(f"Score: {score} → Letter Grade: {letter}")

# Get 5 test scores from the user with input validation
user_scores = []
for num in range(1, 6):
    while True:
        try:
            score = float(input(f"Enter test score {num}: "))
            if 0 <= score <= 100:
                user_scores.append(score)
                break
            else:
                print("Oops! Please enter a score between 0 and 100.")
        except ValueError:
            print("Invalid input! Please enter a numeric value.")

# Call the function with the list of scores
calculate_grades(user_scores)

Option 2: Passing 5 Individual Parameters #

If you want to explicitly pass 5 separate scores to the function (as you mentioned in your question), this version works too:

def calculate_grades(score1, score2, score3, score4, score5):
    # Store scores in a list for easier processing
    scores = [score1, score2, score3, score4, score5]
    average_score = sum(scores) / 5
    print(f"Your test score average is: {average_score:.2f}")
    
    # Determine and display each grade
    for score in scores:
        if score >= 90:
            letter = "A"
        elif score >= 80:
            letter = "B"
        elif score >= 70:
            letter = "C"
        elif score >= 60:
            letter = "D"
        else:
            letter = "F"
        print(f"Score: {score} → Letter Grade: {letter}")

# Get user input for each score
s1 = float(input("Enter test score 1: "))
s2 = float(input("Enter test score 2: "))
s3 = float(input("Enter test score 3: "))
s4 = float(input("Enter test score 4: "))
s5 = float(input("Enter test score 5: "))

# Call the function with individual scores
calculate_grades(s1, s2, s3, s4, s5)

Quick Tips: #

• Adjust the grade thresholds (like 90 for an A) if your class uses a different grading scale.
• The input validation in Option 1 prevents crashes from non-numeric inputs or impossible scores—always a nice touch for user-facing code!
• Both versions calculate the average by summing all scores and dividing by the total count.

内容的提问来源于stack exchange，提问作者Tommy Nixon