有不少游客问我，蜡梅和梅花都带“梅”字，是同一种花还是同属近亲？
这里是一个简单的 proto 文件示例，它定义了一个账户消息类型：
，这一点在safew官方版本下载中也有详细论述
highWaterMark: 10,
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