dart - 如果条件不符合，Dart会继续切换到下一个案例

Question

我有一些发言:

enum Fruit { mango, apple }

if (currentFruit) {
   case Fruit.mango:
     if (someCondition) {
       // do something
     } else {
       // Continue to next case <--
     }
     break;
   case Fruit.apple:
     if (someCondition) {
       // do something
     } else {
       // Continue to next case <--
     }
     break;
}

如何在不中断开关的情况下继续进行下一个案例？
当我删除 break语句时，它会产生一个错误。

Answer 1

您可以为每个语句创建标签，并指向要继续的语句:

switch (currentFruit) {
mango: //This is a label
   case Fruit.mango:
     if (someCondition) {
       // do something
     } else {
       continue apple; // Switch to the "apple" case
     }
     break;
apple: //This is a label
   case Fruit.apple:
     if (someCondition) {
       // do something
     } else {
       continue mango;  // Switch to the "mango" case
     }
     break;
}