為什么這個 elif 語句在第 5 行出現錯誤？

Question

我必須編寫一個簡單的程序來為 0.0 - 1.0 的測試分數分配一個字母等級

score = input("Enter Score: ")
g = float(score)

if 0.0 <= g <= 1.0:
    elif 0.9 <= g <= 1.0:
        print("A")
    
    elif 0.8 <= g < 0.9:
        print("B")
    
    elif 0.7 <= g < 0.8:
        print("C")
    
    elif 0.6 <= g < 0.7:
        print("D")
    
    elif 0.0 <= g < 0.6:
        print("F")  
else:
    print("Error, given value is out of the 0.0-1.0 range")
    quit()

Answer 1

新塊上的 if-elif 語句應以 if 開頭。 它不能以 elif 開頭。

試試這種方式：

score = input("Enter Score: ")
g = float(score)

if 0.0 <= g <= 1.0:
    if 0.9 <= g <= 1.0:
        print("A")
    
    elif 0.8 <= g < 0.9:
        print("B")
    
    elif 0.7 <= g < 0.8:
        print("C")
    
    elif 0.6 <= g < 0.7:
        print("D")
    
    elif 0.0 <= g < 0.6:
        print("F")  
else:
    print("Error, given value is out of the 0.0-1.0 range")
    quit()