获取致命错误，当我从响应保存数据

Question

fatal error: unexpectedly found nil while unwrapping an Optional value

这是我的代码行：

let View = (VArray[0] as? [String : Any])?["views_count"] as! NSNumber 

谁能帮我申请尝试捕捉这一行？对于4

Answer 1

雨燕3.1这是很容易使用可选

if let dictView = VArray[0] as? [String : Any], let viewsCount = dictView["views_count"] as? NSNumber { 
    print(viewsCount) 
} else { 
    print("Cannot convert to NSNumber") 
}