표준입출력 & 파일입출력

#정렬

scores = {"수학" : 0, "영어" : 50, "코딩" : 100}

for subject,score in scores.items():

    #print(subject , score)

    print(subject.ljust(8), str(score).rjust(4),sep = " : ")

#은행 대기순번표

for num in range(1,21):

    print("대기번호 : "+str(num).zfill(3))

# score_file = open("score.txt","w",encoding ="utf8")

# print("수학 : 0",file = score_file)

# print("영어 : 50",file = score_file)

# score_file.close()

# score_file = open("score.txt","a",encoding = "utf8") #append

# score_file.write("과학 : 80")

# score_file.write("\n코딩 : 100")

# score_file.close()

# score_file = open("score.txt","r",encoding = "utf8")

# print(score_file.read())

# score_file.close()

# score_file = open("score.txt","r",encoding = "utf8")

# print(score_file.readline(),end= "") #줄별로 읽고 커서 다음줄로 이동

# print(score_file.readline())

# print(score_file.readline())

# print(score_file.readline())

# score_file.close()

# score_file = open("score.txt","r",encoding = "utf8")

# while True:

#     line=  score_file.readline()

#     if not line:

#         break

#     print(line, end = "")

# score_file.close()