如何从头开始for-each循环？

Question

我正在编写For-each循环，并在for-each循环中检查条件。如果满足该条件，我想重新启动循环。是否有诸如 continue 或 break 之类的关键字可以从头开始

>>> obj="""
... /API/{id}/one
... /{two}/one/three
... /three/four/{five}
... """
>>> newobj = obj.replace('{','${')
>>> print(newobj)

/API/${id}/one
/${two}/one/three
/three/four/${five}

Answer 1

您可以在for循环中使用索引，然后在需要重新启动循环时将此索引设置为零。

for (int i = 0; i < ordersItemList.size(); i++) {
    PoDetails item = ordersItemList.get(i);
    if (nextPosition == incrementPosition) {
        if (some condition) {
            break;
        } else {
            if (some condition) {
                continue;
            }else{
                //I want to restart the for-each loop here
                i = 0; // set the index to zero here, then it will start the loop from the begnning
            }
        }
    } else {
        nextPosition++;
    }
}

Answer 2

OUTER: //outer label
for (PoDetails items : ordersItemList) {
    if (nextPosition == incrementPosition) {
        if (some condition){
            break;
        } else{
            if (some condition){
                continue;
            } else{
                continue OUTER:; // This will call the loop from OUTER:
            }
        }
    } else {
        nextPosition++;
    }
}