C³ÌÐòµ÷ÓÃC++º¯Êý
ÕâÖÖÐèÇóÓ¦¸Ã¾ÍûC++³ÌÐòµ÷ÓÃCº¯ÊýÐèÇó¶àÁË.ĿǰµÄʵÏÖ»ù±¾Ö»ÓÐÒ»Àà·½·¨,¼´Í¨¹ý´¦Àí±»µ÷ÓõÄC++Îļþ.
ÎÄ
Öиø³öµÄÈÔÈ»ÊÇÍêÕûµÄ,¾ßÌåµÄ,µ«ÓÖ×î»ù±¾×î¼òµ¥µÄʵÏÖ,ÖÁÓÚÀíÂÛÐԵĶ«Î÷ÔÚÍøÉϺÜÈÝÒ×ËÑË÷µÄµ½.ÕâÀïÊÇÕë¶Ôµ÷ÓÃC++µÄ³ÉÔ±º¯ÊýµÄʵÏÖ.
aa.h
class AA {
int i;
public:
int ThisIsTest(int a, int b);
float ThisIsTest(float a, float b);
};
extern "C" int ThisIsTest_C(void* s, int a,int b);
extern "C" float PolymorphicTest_C(void* s,float a, float b);
aa.cpp:
#include "aa.h"
int AA::ThisIsTest(int a, int b){
return (a + b);
}
float AA::PolymorphicTest(float a, float b){
return (a+b);
}
int ThisIsTest_C(void* s, int a,int b){
AA* p = (AA*)s;
return p->ThisIsTest(a,b);
}
float PolymorphicTest_C(void* s,float a, float b){
AA* p = (AA*)s;
return p->ThisIsTest(a,b);
}
a.h:
#ifndef __A_H
#define __A_H
int bar(void* s,int a, int b);
int bar_float(void* s,float a, float b);
#endif
a.c
#include <stdio.h>
#include "a.h"
extern int ThisIsTest_C(void* s, int a,int b);
extern float PolymorphicTest_C(void* s,float a, float b);
int bar(void* s,int a, int b) {
printf("result=%d\n", ThisIsTest_C(s,a, b));
return 0;
}
int bar_float(void* s,float a, float b) {
printf("result=%f\n", PolymorphicTest_C(s,a, b));
return 0;
}
main.c:
#include "a.h"
struct S {
int i;
};
struct S s;
int main(int argc, char **argv){
int a = 1;
int b = 2;
float c = 1.5;
float d = 1.4;
bar((void*)&s,a, b);
bar_float((void*)&s,c,d);
return(0);
}
Makefile:
all:
gcc -Wall -c a.c -o a.o
gcc -Wall -c aa.cpp -o aa.o
gcc -Wall -c main.c -o main.o
 
Ïà¹ØÎĵµ£º
½á¹¹ÌåºÍ¹²ÓÃÌåµÄÄÚ´æ·ÖÅäÊÇCÓïÑÔµÄÒ»¸öÄѵ㣬ҲÊÇÃæÊÔÌâÖеÄÈȵ㡣
ʾÀý1£º
Union data1
{
double d;
int i;
char c1;
char c2[9];
};
sizeof(union data1 ......
ÌâÄ¿£ºÊäÈëÒ»ÐÐ×Ö·û£¬·Ö±ðͳ¼Æ³öÆäÖÐÓ¢ÎÄ×Öĸ¡¢¿Õ¸ñ¡¢Êý×ÖºÍÆäËü×Ö·ûµÄ¸öÊý¡£
1.³ÌÐò·ÖÎö£ºÀûÓÃwhileÓï¾ä,Ìõ¼þΪÊäÈëµÄ×Ö·û²»Îª'\n'.
¡¡¡¡¡¡¡¡¡¡¡¡
2.³ÌÐòÔ´´úÂ룺
#include "stdio.h"
main()
{char c;
¡¡int letters=0,space=0,digit=0,others=0;
......
ÎҼƻ®µÄѧϰÀú³Ì£º
1. cºÍc++µÄ»ù´¡ÖªÊ¶£¬Õâ¸öºÍ²Ù×÷ϵͳÎ޹أ¬ÔÚwindowsÉÏÒ²¿ÉÒÔѧ¡£cÓïÑÔÓï·¨Ïà¶Ô¼òµ¥Ò»µã£¬c++²»ÐèÒª°ÑËùÓеÄ֪ʶµã¶¼Ñ§»á£¬ÒªÖªµÀ»ù±¾µÄ·â×°£¬¼Ì³Ð£¬¶à̬֮ÀàµÄ£¬»¹ÓÐSTL¡£¸üÉîÈëµÄѧϰӦ¸ÃÊÇÔÚÒÔºóµÄ¹¤×÷ÖÐÓöµ½ÎÊÌâÁËÔÙÈ¥²é×ÊÁÏ¡£
2. ¿´Êé¡¶APUE¡·£¬×öÊéÉϵÄϰÌâ£¬ÕÆÎÕÎļþ£¬ÏµÍ³µ÷Óã¬Ï̡߳¢½ø³Ì¡¢ ......
ijЩÇé¿öÏÂÏ£Íûº¯ÊýµÄ²ÎÊý¸öÊý¿ÉÒÔ¸ù¾ÝÐèҪȷ¶¨¡£µäÐ͵ÄÀý×ÓÓдó¼ÒÊìϤµÄº¯Êýprintf()¡¢scanf()ºÍϵͳµ÷ÓÃexecl()µÈ¡£ÄÇôËüÃÇÊÇÔõÑùʵÏÖµÄÄØ£¿C±àÒëÆ÷ͨ³£ÌṩÁËһϵÁд¦ÀíÕâÖÖÇé¿öµÄºê£¬ÒÔÆÁ±Î²»Í¬µÄÓ²¼þƽ̨Ôì³ÉµÄ²îÒ죬Ôö¼Ó³ÌÐòµÄ¿ÉÒÆÖ²ÐÔ¡£ÕâЩºê°üÀ¨va_start¡¢ va_argºÍva_endµÈ¡£
²ÉÓÃANSI±ê×¼ÐÎʽʱ£¬²ÎÊý¸öÊý¿É± ......
ÕâÖÖÐèÇóºÜ¶à,ÓÖÒòΪC++ºÍCÊÇÁ½ÖÖÍêÈ«²»Í¬µÄ±àÒëÁ´½Ó´¦Àí·½Ê½,ËùÒÔÒªÉÔ¼Ó´¦Àí.×ܽá´óÖÂÓÐÁ½´óÀàʵÏÖ·½·¨.
ÎÄÖиø³öµÄÊÇÍêÕûµÄ,¾ßÌåµÄ,µ«ÓÖ×î»ù±¾×î¼òµ¥µÄʵÏÖ,ÖÁÓÚÀíÂÛÐԵĶ«Î÷ÔÚÍøÉϺÜÈÝÒ×ËÑË÷µÄµ½.
Ò».ͨ¹ý´¦Àí±»µ÷ÓõÄCÍ·Îļþ
a.h:
#ifndef __A_H
#define __A_H
#ifdef __cplusplus
extern "C" {
#endif
int Th ......