Technology is a powerful force in our society. Data, software,and communication can be used for bad: to entrench unfair power structures, to undermine human rights, and to protect vested interests. But they can also be used for good: to make underrepresented people's voice heard, to create opportunities for everyone, and to avert disasters. We are dedicated to working toward the good.
摘要：
在实际应用中经常会比较两个对象是否相等，比如下面的Address类，它有两个属性：String province 和 String city。 在现实生活中我们认为若两个 Address 的 province 和 city 属性相同，则它们应该是同一个地址（省市都一样，当然就是同一个地区啦）。但下面 阅读全文
