石头，布，剪刀:不确定如何随机化一个选择，然后添加一个if-then语句

import random

gesture = random.choice(['石头', '布', '剪刀'])

import java.util.Random;

String[] gestures = {"石头", "布", "剪刀"};
Random random = new Random();
String gesture = gestures[random.nextInt(gestures.length)];

#include <iostream>
#include <cstdlib>
#include <ctime>

std::string gestures[] = {"石头", "布", "剪刀"};
std::string gesture;

std::srand(std::time(0));
gesture = gestures[std::rand() % 3];

if gesture == '石头':
    print('电脑选择了石头')
    # 进行相应的处理逻辑
elif gesture == '剪刀':
    print('电脑选择了剪刀')
    # 进行相应的处理逻辑
else:
    print('电脑选择了布')
    # 进行相应的处理逻辑