在二维数组中用 for 循环分配坐标

Question

我只想用 for 循环分配 x 坐标和 y 坐标。但它不像 c#、c++ 等其他语言那样工作。这是我的代码：

  var coordinate=[[]];
  var x, y;
      for (x=1; x <= 7; x += 1) {
          for (y=1; y <= 5; y += 1) {
              coordinate[x][y] = "("+x+","+y+")";
          }
      }

我该怎么做？

Answer 1

  var coordinate=[];
  var x, y;
      for (x=1; x <= 7; x += 1) {
            coordinate[x] = [];
          for (y=1; y <= 5; y += 1) {
              coordinate[x][y] = "("+x+","+y+")";
          }
      }