为什么要举牌？

在很多影视剧中，我们经常能看到黑帮或帮派成员在接头时，都会举着一块牌子，上面写着一些字，这就是所谓的举牌。那么，为什么要举牌呢？

Firstly, the purpose of waving a signboard is to display a message or symbol. In the帮派 scene, the message or symbol may be a code or password of the organization, or a warning or threat to others. By waving the signboard, members of the organization can identify each other and confirm their loyalty to the organization. In addition, the signboard can also be used to communicate with others and express their attitude or intention.英文翻译：

Secondly, the purpose of waving a signboard is to create an atmosphere or effect. In the帮派 scene, waving a signboard can create an atmosphere of violence and danger, and show the violence and intimidation of the organization. At the same time, waving a signboard can also create an atmosphere of solemnity and ceremony, and show respect and worship for the organization or its leaders.英文翻译：

Thirdly, the purpose of waving a signboard is to attract attention. In the帮派 scene, waving a signboard can attract the attention of others and show their strength and influence. At the same time, waving a signboard can also attract attention of other members of the organization, and encourage them to participate in activities or take action.英文翻译：
Finally, the purpose of waving a signboard is to express personal emotions or feelings. In the帮派 scene, some characters may wave a signboard to express their anger, frustration or despair. At the same time, some characters may also wave a signboard to express their happiness or joy.英文翻译：
总的来说，举牌的目的可以是展示信息或符号、制造氛围或效果、吸引注意力以及表达个人情感或感受。在影视剧中，举牌这一动作可以传达出很多信息和情感，同时也为观众带来了更深刻的体验。