The duration of a variable is the period of time during which storage is allocated to the variable.

一个变量的存在时间就是指它在内存中占有指定地址的时间。

youdao

The duration of a variable is the period of time during which storage is allocated to the variable.

一个变量的存在时间就是指它在内存中占有指定地址的时间。

youdao