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进程与线程
2022-07-03 09:56:00 【曹长卿啊】
1.


① 一个程序进入到内存,就会分配对应的资源(主要是内存空间),所以说进程就是用来分配内存空间的(存放数据)。而线程不会被分配内存,它们是在同一内存空间下的不同计算单元(不同的指令,不涉及数据)。
简言之,进程被分配内存空间来放数据,而线程是一条条执行指令。
② 同一段代码(指令)可以被多个线程执行(可能是不同线程下,同一段代码的参数不同等)。
比如同一个函数add(i, j),线程a下的i与j分别是3、4,而线程b下的i与j分别是5、6.

③
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