如何在 dart 中从控制台输入数据列表？

Question

在 Dart 中，我想将用户 100 的数据输入到控制台的列表中。我该怎么做？

void main() {
  int value;
  List<int> list = [0];

  var largest = list[0];
  for (var i = 0; i < list.length; i++) {
    list.add(stdin.readByteSync());
    if (list[i] > largest) {
      largest = list[i];
    }
  }
  print(largest);
}

Answer 1

在聊天中进行了一些对话后，我们得出了以下解决方案：

import 'dart:io';

void main() {
  // Create empty list
  final list = <int>[];

  // Number of numbers we want to take
  const numbersWeWant = 100;

  // Loop until we got all numbers
  for (var i = 0; i < numbersWeWant; i++) {
    int? input;

    // This loop is for asking again if we get something we don't see as a number
    do {
      print('Input number nr. $i:');

      // Get a number. input is going to be null if the input is not a number
      input = int.tryParse(stdin.readLineSync() ?? '');
    } while (input == null); // loop as long as we don't got a number

    // Add the number we got to the list
    list.add(input);
  }

  // Use list.reduce to find the biggest number in the list by reducing the
  // list to a single value using the compare method.
  print('Largest number: ${list.reduce((a, b) => a > b ? a : b)}');
}

如何在 dart 中从控制台输入数据列表？

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