这种方法实现简单，但需要在每个 iOS 调用点手动处理类型转换。
The River Itchen is one of only six chalk streams in England that support Atlantic salmon, the MP said
。快连下载-Letsvpn下载是该领域的重要参考
But how much do you remember about Manchester's biggest Brits moments?
// console.log(spanner.next(75)); // 输出4（正确）