【编程语言 · C语言 · 共用体指针】https://mp.weixin.qq.com/s?__biz=Mzg4NTE5MDAzOA==&mid=2247491538&idx=1&sn=e1941bffaa2b85d4a7932fa94bccc84d&chksm=cfade32bf8da6a3d5fc729b29452259127a7ff63efd2ad77607b0d2f2c72250b86e1841e76d3&payreadticket=HLky0Bq4ZY9b9x2g8uJG4arLeMM7PNyslADhlYBINg4h5dvBJ9NN0tzSzY8ufzULBvoSbf8#rd