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For example, first define a function, which has three methods, namely win, lose and die. As long as a player dies, the game is over and its opponent needs to be informed of victory. The code needs to be written as follows:原来已经进了秦家院子，众人都不敢吱声了。心理学家克里斯•凯尔文（Donatas Banionis 饰）在飞往索拉瑞斯星之前来到儿时的父母家与当年的索拉瑞斯飞行员亨利•伯顿（Vladislav Dvorzhetsky 饰）见面。伯顿警告凯尔文索拉瑞斯星上会有不可思议的奇事发生，但后者并不以为意。凯尔文离开前，当 着父亲（尼古莱•格陵柯Nikolai Grinko 饰）的面焚毁了自己的个人物品。凯尔文到达索拉瑞斯星附近的太空站后，对科学家奇巴瑞安博士（Sos Sargsyan 饰）之死进行调查，却发现自己多年前已经去世的妻子哈莉（Natalya Bondarchuk 饰）竟突然出现。惊慌失措的凯尔文与太空站上另三位科学家讨论该如何面对怪事，却发现原来每人都深受其扰，不明就里……本片被提名1972年戛纳电影节金棕榈奖，并获同年戛纳电影节评委会大奖和国际影评人协会大奖。Update to v7.1. 5c_release;In addition, As Zhang Xiaobo said, On the front line at that time, Wearing or not wearing a helmet is a "choice", Because Vietnam is located in Southeast Asia, The climate is hot and humid, Helmets are heavy and airtight, Wearing it is very easy to cause heatstroke, Particularly in fast maneuvers, This is the easiest way to do strenuous activities such as running. Therefore, in order for the troops to fight more efficiently, There would be no mandatory order for everyone to wear a helmet, If you don't want to wear it, you can choose to wear a cloth cap with eaves. So in the vast majority of relevant historical photos, Among our troops participating in the war, The highest percentage of helmets is worn by artillery, It is mainly used to defend the fragments of enemy artillery and various hard objects brought up by explosions in artillery warfare. Even some border militiamen wore helmets in large numbers, On the contrary, the impact is at the forefront, Infantry units carrying out a large number of mobile combat missions are rarely worn, Investigate its reason, It is for the infantry troops to carry out large-scale interspersed operations frequently. Exercise is enormous, It is really inconvenient to wear helmets, This approach has both advantages and disadvantages, It is not good to judge right or wrong here, but when facing such a horrible "killer bee" on the ground on 149, it is regrettable and regrettable that the heavy casualties caused by the low wearing rate of helmets have to be said. If they had worn helmets instead of military caps like Zhang Xiaobo, the casualties caused by the sting attack of "killer bee" would have been much smaller.哆啦A梦是一只来自未来世界的猫型机器人，用自己神奇的百宝袋和各种奇妙的道具帮助大雄解决各种困难。哆啦A梦的故事将人们带进一个奇妙、充满想像力的世界。也正因此，它能作为一个常青的形象，伴随几代少年儿童的成长。