foreach

foreach基本语法：

在Java中:

先定义数组，

for(数据类型  变量名 ： 数组名){

System.out.print(变量名);

}

public class foreach {

    public static void main(String[] args) {
        String[] str = {"1","a","2","b","3","c","4","d","5","e","6","f"};
        
        for(String strs : str) {
            System.out.print(strs + " ");
        }
        
    }

}

运行结果：

JavaScript中foreach的语法：

for(数据类型  变量名 in  数组名){

document.write(数组名[变量名]);

}

<script>
    var i = new Array("abc","def","ghi");
    
    for(var a in i){
        document.write(i[a] + " ");
    }
    
</script>

运行结果:

c#中foreach的语法：

foreach(数据类型  变量名 in  数组名){

}

因电脑原因，所以c#的代码与运行结果无法展示