让纳泽最有感触的，是移动支付带来的便利。他下载、注册支付宝APP，绑定境外银行卡，一定额度内的消费不用验证身份，“在街边小店吃烧腊、买咖啡，都能扫码支付，太方便了。”
Imagine a world in which you can do transactions and many other things without having to give your personal information. A world in which you don’t need to rely on banks or governments anymore. Sounds amazing, right? That’s exactly what blockchain technology allows us to do.，这一点在safew官方版本下载中也有详细论述
添加图片注释，不超过 140 字（可选），这一点在Safew下载中也有详细论述
for (int i = 0; i < n; i++) {