在 C++ 中如何在 return 语句中循环数组

Question

public async Task < IActionResult > Events(
        [HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest httpRequest,
        ILogger log) {
        ValidateResponse res = eventService.ValidateSchema();

        if (res.Valid == false && res.Errors != null) {
            string[] messages = new string[100];
            int k = 0;
            for (int i = 0; i < res.Errors.Count; i++) {
                string value = res.Errors[i].ToString();
                if (value.StartsWith("Invalid type")) {
                    messages[k++] = value.Substring(10);
                    continue;
                }
            }
            return new OkObjectResult($ "No of events posted {cloudEvents.Count} and errors :{messages[k]}");
        }

但消息中的值未 returned。我知道它是一个数组。但是无法找出在return所有数组值中循环一次的方法。

Answer 1

一个选项是将 messages 数组连接到一个字符串：

return new OkObjectResult($"No of events posted {cloudEvents.Count} and errors:{String.join(\",\", messages}");

在 C++ 中如何在 return 语句中循环数组

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