这些字段将跟踪已在循环中执行的迭代数，并检查该条件以确定何时结束。

These fields keep track of the number of iterations that have been performed in the loop, and check the condition to determine when to end.

youdao

然后，一个while循环迭代数据集，在一个方便的数组中存储信息以便将来进行显示。

A while loop then iterates through the dataset, storing the information in a convenient array for later display.

youdao

for - each循环：当迭代数组时，编译器生成归纳变量和标准的数组迭代语法。

For-each loop: When iterating over an array, the compiler generates an induction variable and the standard array iteration idiom.

youdao