代码附有注释，已有缩进，直接复制即可

n = int(input()) total_sum = 0.0 current_denominator = 0.0 for i in range(1, n+1): current_denominator += i total_sum += 1 / current_denominator print(f"{total_sum:.2f}")

别人程序内存 我的程序内存 3.68MB 1.63MB