一般情况下，我们是传递变量值的一份拷贝，因而无法改变变量的值。

Generally we pass them by value as a copy. So we cannot change them.

youdao

一般情况下，我们是传递变量值的一份拷贝，因而无法改变变量的值。

Generally we pass them by value as a copy. So we cannot change them.

youdao