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请求的内置库在Dartium上不可用-库处理程序导入'dart:io'失败;

[英]The requested built-in library is not available on Dartium - library handler failed import 'dart:io';

I am beginner in Dart. 我是Dart的初学者。 I have build a simple application in Dart. 我已经在Dart中构建了一个简单的应用程序。

import 'dart:math';
import 'dart:io';

void main() {
  int guess;
  Random rand = new Random();
  int answer = rand.nextInt(100);
  do{
    print("Enter your guess number: ");
    String temp = stdin.readLineSync();
    guess = int.parse(temp);
    if (guess < answer){
      print("Too low");
    }else if (guess > answer){
      print("Too high");
    }
  }while(guess != answer);
  print("Got it!");
}

But, when i run it on Dartium. 但是,当我在Dartium上运行它时。 It has an error. 它有一个错误。

错误

What can I do to solve this? 我该怎么解决? Thanks. 谢谢。

dart:io is for console/server applications. dart:io用于控制台/服务器应用程序。 If you want to run the code in the browser you must not import it. 如果要在浏览器中运行代码,则不得导入。 Maybe dart:html is what you want instead. 也许dart:html才是您想要的。 It exposes the browser API. 它公开了浏览器API。

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