The increment function should be called with a reference to the variable instead of the value of the variable.

应该用变量的引用调用increment函数，而不是使用变量的值。

youdao

The increment function should be called with a reference to the variable instead of the value of the variable.

应该用变量的引用调用increment函数，而不是使用变量的值。

youdao