c++ - 如何退出(转到父循环的下一个元素)for 循环内的 for 循环

Question

for (int i = 0; i<10; i++)
{ 
  //do some validation for record length

  //if it is not valid

  continue; // goes to the next iteration in for loop for 'i'

  for (int j = 0; j<5; j+=2)    
  {

     //do some more validation for individual record

     //if it is not valid

如果我使用 continue，它应该转到下一个 i。这里会转到下一个j 谁能告诉我该怎么做？

Answer 1

如果内循环之后有东西，你需要在外循环中专门测试一个标志:

for(some_outer_vars){
  bool should_skip = false;
  // ...
  for(some_inner_vars){
    // ...
    if(your_condition){
      should_skip = true;
      break;
    }
  }
  if(should_skip)
    continue;
  // ...
}