摘要:
道常无名。朴虽小,天下莫能臣。侯王若能守,万物将自宾。天地相合以降甘露,人莫之令而自均。始制有名,名亦既有,夫亦将知止,知止所以不殆。譬道之在天下,犹川谷之于江海。 阅读全文
摘要:
Interrupts are an important part of embedded systems. Consequently, many compiler vendors offer an extensionto standard C to support interrupts. Typic... 阅读全文
摘要:
1、写出下面代码的结果#include int main(){ int *pa = NULL; int *pb = pa + 15; printf("%x\n", pb); return 0;}2、结果3c3、析1)第一行确定了pa的值为0,第二行的运算为0+15*4 = 60,结果输出时指... 阅读全文