基本寫入到Python中的CSV文件？

Question

我正在尋找幫助寫入到python 3中的csv文件。我有下面的代碼，但它似乎只寫入第一行，每當我再次運行代碼它會覆蓋第一行。

import csv 

with open("scores1.csv", "w") as csvfile: 
    fieldnames = ["score", "username","topic","difficulty",] 
    writer = csv.DictWriter(csvfile, fieldnames=fieldnames) 

    writer.writeheader() 
    score = int(input("score")) 
    user = input("user: ") 
    topic = input("topic: ") 
    difficulty = input("difficulty: ") 

    writer.writerow({"score": score, "username": user, "topic": topic, "difficulty": difficulty}) 

print() 

csvfile.close() 

Answer 1

writerow()，不出所料地寫了一行。所以它需要包含在一個for循環中，遍歷每個要寫入文件的記錄。