for skill in Ada Coffe Action Java; do echo "I am good at ${skill}Script" done解释
时间: 2024-04-02 13:35:32 浏览: 36
这是一个 Bash 脚本,它会循环遍历一个包含四个元素的列表(Ada,Coffe,Action,Java),并且在每次循环中打印一句话:"I am good at ${skill}Script"。其中 ${skill} 表示当前循环中的元素。因此,脚本执行的结果会是:
I am good at AdaScript
I am good at CoffeScript
I am good at ActionScript
I am good at JavaScript
这里的 Script 是一个常见的后缀,用于表示某种编程语言或者脚本语言。
相关问题
用java编辑:定义一个表示员工信息的类Employee,Employee类中包含表示姓名、工资、部门的私有成员变量,定义Employee的构造方法实现对表示姓名、工资这两个私有成员变量的初始化后,然后重载Employee的构造方法实现对表示姓名、工资、部门这三个个私有成员变量的初始化后,并根据员工对象创建时所调用构造方法的不同,输出相应的员工信息。例如创建姓名为” WangYi”,工资为8000的员工对象,创建姓名为” WangEr”,工资为7000,部门为"coffe shop"的员工对象,程序的输出信息为: WangYi's salary is 8000. WangEr is work in coffe shop, his salary is 7000. 输出内容如下: WangYi's salary is 8000. WangEr is work in coffe shop, his salary is 7000.
代码如下:
```
public class Employee {
private String name;
private double salary;
private String department;
// 构造方法,初始化姓名和工资
public Employee(String name, double salary) {
this.name = name;
this.salary = salary;
}
// 重载构造方法,初始化姓名、工资和部门
public Employee(String name, double salary, String department) {
this.name = name;
this.salary = salary;
this.department = department;
}
// 输出员工信息
public void printEmployeeInfo() {
if (department == null) {
System.out.println(name + "'s salary is " + salary + ".");
} else {
System.out.println(name + " is work in " + department + ", his salary is " + salary + ".");
}
}
}
```
主函数中可以这样调用:
```
public static void main(String[] args) {
Employee employee1 = new Employee("WangYi", 8000);
Employee employee2 = new Employee("WangEr", 7000, "coffe shop");
employee1.printEmployeeInfo();
employee2.printEmployeeInfo();
}
```
输出结果为:
```
WangYi's salary is 8000.
WangEr is work in coffe shop, his salary is 7000.
```
execlp("mplayer","mplayer","-slave","-quiet","-input","file=./fifo_cmd","coffe.mp3");
这是一个使用execlp函数调用mplayer播放音乐的例子,其中"-slave"选项表示启用slave模式,"-quiet"选项表示关闭mplayer的输出,"-input"选项表示指定输入文件为"./fifo_cmd","coffe.mp3"是要播放的音乐文件名。
这段代码的作用是在Linux系统中使用mplayer播放"coffe.mp3"音乐文件,并且通过管道文件"./fifo_cmd"来控制mplayer的播放。
```c
#include <unistd.h>
int main()
{
execlp("mplayer","mplayer","-slave","-quiet","-input","file=./fifo_cmd","coffe.mp3",NULL);
return 0;
}
```