javascript for to while 语句

Question

如何将这些 for 语句转换为 JavaScript 中的 while 语句:

    for (left = gridPlace; left <= gridLastPlace; left++){
    for (right = gridOtherPlace; right <= gridLastOtherPlace; right++)
  }

谢谢

Answer 1

A for (x; y; z) { ... } 与 x; 相同而 (y) { ... z; }，所以你的循环将是:

left = gridPlace;
while (left <= gridLastPlace) {
  right = gridOtherPlace;
  while (right <= gridLastOtherPlace) {
    ...
    right++;
  }
  left++;
}