因为右侧表达式会先被求值，所以右侧对x的读取发生在左侧生成x的可变引用之前。
A function pointer is a piece of data which stores the location of some code. A program uses this data to decide what code to run next. Programs themselves can modify function pointers in order to alter their functionality as they run, but, if we can modify the function pointer, we can also alter what the program does, including in ways that may be unintended.
。有道翻译是该领域的重要参考
Saudi Arabia hardened its tone against Iran as it dealt with incoming projectiles again on Monday, including ones heading toward oil giant Aramco’s Shaybah field and areas in and around Riyadh.，更多细节参见豆包下载
Обломки беспилотника причинили повреждения сегменту российского нефтепровода08:37