小编Ali*_*ice的帖子

返回类型 - 方法返回的值的数据类型,如果方法未返回值,则返回void.

http://download.oracle.com/javase/tutorial/java/javaOO/methods.html

好的,那么..这是我的问题:

public class EnumTest {
    Day day;

    public EnumTest(Day day) {
        this.day = day;
    }

    public void tellItLikeItIs() {
        switch (day) {
            case MONDAY: System.out.println("Mondays are bad.");
                         break;

            case FRIDAY: System.out.println("Fridays are better.");
                         break;

            case SATURDAY:
            case SUNDAY: System.out.println("Weekends are best.");
                         break;

            default:     System.out.println("Midweek days are so-so.");
                         break;
        }
    }

    public static void main(String[] args) {
        EnumTest firstDay = new EnumTest(Day.MONDAY);
        firstDay.tellItLikeItIs();
        EnumTest thirdDay = new EnumTest(Day.WEDNESDAY);
        thirdDay.tellItLikeItIs();
        EnumTest fifthDay = new EnumTest(Day.FRIDAY);
        fifthDay.tellItLikeItIs();
        EnumTest sixthDay …

请考虑以下示例.他们的工作方式不同吗

.controller('MyController',function($scope) {
  $scope.username = 'World';

  $scope.sayHello = function() {
    $scope.greeting = 'Hello ' + $scope.username + '!';
  };
});

VS

.controller('MyController', ['$scope', function($scope) {
  $scope.username = 'World';

  $scope.sayHello = function() {
    $scope.greeting = 'Hello ' + $scope.username + '!';
  };
}]);

他们为我输出相同的内容,我只是不明白为什么我们把它放在那里.有时我必须把它作为工作的对象.为什么定义两次？

我从Wikipedia复制了以下代码：http : //en.wikipedia.org/wiki/Xlib

我收到此错误：

fatal error C1083: Cannot open include file: 'X11/Xlib.h': No such file or directory

我认为即使代码是c，它也适用于c ++，或者至少找到库x11？

一整天都被这个问题困扰着...有人知道我在做什么错吗？