使用tableview函数时出现错误

Question

The program is building successfully, but when it goes into the simulation, it crashes, and the fatal error message is logged to console.

The line that triggers the error is:

let cell = self.tableview?.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CustomCell

Answer 1

Is cell returning nil? You need to make sure that you're passing the correct identifier of the UITableViewCell in your storyboard to the withIdentifier: "cell" parameter. Also, what is being logged to the console when you get this error? Many times it will point to the solution.

Answer 2

在情节提要中提供相同的标识符“单元格”。