关于python运行结果问题（图中划线了）取得的值为什么变了

Question

 

Answer 1

你使用 

line = line[:-1] 去除换行符，但是他最后一行并没有换行符，所以你多去除了一个字符，55 变成了 5 

def compute_score():
	scores = []
	with open("student_grade_input.txt",encoding='utf-8')as fin:
		for line in fin:
			# line = line[:-1]
			fields = line.split(',')
			#取成绩,并转换为数字在2号位或-1位
			scores.append(int(fields[-1]))
	max_score = max(scores)
	min_score = min(scores)
	avg_score = sum(scores) / len(scores)
	return max_score,min_score,avg_score

max_score, min_score, avg_score = compute_score()
print(f"max_score={max_score},min_score={min_score},avg_score={avg_score}")

 这样就可以，最多打一个换行符出来：