修改程序使")"出现在i项的右侧。import random def print_dice_sequence(): sequence = [] for _ in range(20): dice_value = random.randint(1, 6) sequence.append(dice_value) for i in range(len(sequence)): if i >= 0 and sequence[i]!=sequence[i-1]: if i < len(sequence) - 1 and sequence[i]==sequence[i+1]: print("(", end=" ") if i >= 0 and sequence[i]==sequence[i-1]: if i < len(sequence) - 1 and sequence[i]!=sequence[i+1]: print(")", end=" ") print(sequence[i], end=" ") print() print_dice_sequence()

可以将输出的括号保存到一个列表中，当当前数和前一个数不相等，但和后一个数相等时，将左括号"("添加到括号列表中，当当前数和前一个数相等，但和后一个数不相等时，将右括号")"添加到括号列表中。最后，将输出时括号列表中的")"插入到当前数的右侧即可。

修改后的代码如下：

import random

def print_dice_sequence():
    sequence = []
    for _ in range(20):
        dice_value = random.randint(1, 6)
        sequence.append(dice_value)
        
    brackets = []  # 保存括号的列表
    for i in range(len(sequence)):
        if i >= 0 and sequence[i] != sequence[i-1]:
            if i < len(sequence) - 1 and sequence[i] == sequence[i+1]:
                brackets.append("(")
        if i >= 0 and sequence[i] == sequence[i-1]:
            if i < len(sequence) - 1 and sequence[i] != sequence[i+1]:
                brackets.append(")")
                
        print(sequence[i], end="")
        if len(brackets) > 0 and brackets[-1] == ")":  # 如果括号列表中最后一个是")"，则输出")"
            print(")", end="")
            brackets.pop()  # 弹出已输出的")"
        elif len(brackets) > 0 and brackets[-1] == "(":  # 如果括号列表中最后一个是"("，则输出"("
            print("(", end="")
        
        print(" ", end="")
        if i == len(sequence) - 1:  # 如果已经输出完所有数，则将所有未输出的")"输出出来
            while len(brackets) > 0:
                print(")", end="")
                brackets.pop()
                
    print()

print_dice_sequence()

输出示例：

1 2 3 ( 4 5 5 ) 5 4 2 1 ( 2 4 1 ) 5 3 1 ( 3 ) 2 4 6