摘要:
TeX is a typesetting language developed by Donald Knuth. It takes source text together with a few typesetting instructions and produces, one hopes, a ... 阅读全文
摘要:
#include #include union A{ char a; char *b; // 联合体的指针成员要特别注意};int main(){ A a; a.b = (char *)malloc(10); // b指向了一个堆的地址 // 如果联合体中有指针成员,那么一定要使用完这个指针,并且f... 阅读全文