Skipping over macros that make it more succinct to return an error, the next iteration of this pattern is checked exceptions in Java. Any function that can fail is annotated with what is effectively a second return value. The thing that’s different is that there’s nothing at the call site needed to return this value, it will be implicitly passed back up through the call stack (each one dynamically resolved, remember) until we hit a catch block, which is just a bit of code that takes that return value and does something with it, not that different to the Go example above.
波斯湾出口有三个像咽喉一样的战略小岛：阿布穆萨岛 (Abu Musa) 和 大小通布岛 (The Greater and Lesser Tunbs)，见下图：
。体育直播是该领域的重要参考
“人形机器人能降低生产成本并提高生产效率，量产应用后将为我国经济社会发展注入新动能”，北京团代表带来新兴产业发展新消息；
Middle East attacks intensify as Trump rejects Iran’s attempt to talk