Question

php二维数组foreach到table里

Array ( [a0] => Array ( [0] => 9 [1] => 7 ) [a1] => Array ( [0] => 11 [1] => 10 ) [a2] => Array ( [0] => 11 [1] => 11 ) [a3] => Array ( [0] => 11 [1] => 10 ) [a4] => Array ( [0] => 10 [1] => 10 ) [a5] => Array ( [0] => 6 [1] => 14 ) [a6] => Array ( [0] => 6 [1] => 3 ) [a7] => Array ( [0] => 14 [1] => 11 ) [a8] => Array ( [0] => 14 [1] => 6 ) [a9] => Array ( [0] => 15 [1] => 10 ) [a10] => Array ( [0] => 12 [1] => 11 ))这是个二维数组，a0-a10是键值，每个里面有个一个数组，这个数组有两个值，然后foreach到表格里如图是想要的结果，我只会把一维数组的，代码如下echo "<table border='1'>"; foreach ($contents_a as $value) { echo "<tr>"; for ($h = 3;$h<=18;$h++){ if ($value == $h){ echo "<td>".$value."</td>"; }else{ echo "<td>" . ' ' . "</td>"; } } echo "</tr>"; } echo "</table>";求高人指导下二维数组怎么写，图中红色的表示一维数组中的两个值是一样的，就用红色

Answer 1

Java里面是有for循环的吧。抱着学习的观念来回答你的问题。参考了一下楼上两位的，自己写了个程序：
public class TestArray {

public static void main(String[] args) {
// 定义一个长度为10的数组
int a[][] = new int[10][8];
// 为数组中每个元素赋值
for (int i = 0; i < a.length; i++) {
for (int j = 0; j < a[i].length; j++)
a[i][j] = i * j;

}

//用泛型遍历输出数组
for(int[] arr : a){
for(int arr2 : arr){
System.out.print(arr2+"\t");
}
//每打印完一个a[i][0]-a[i][8]就换行
System.out.println();
}
}

}