/*代碼段、數(shù)據(jù)段和BSS段存儲變量類型*/
#include <stdio.h>
const int    g_A       = 10;            //代碼段
int            g_B       = 20;            //數(shù)據(jù)段
static int    g_C       = 30;            //數(shù)據(jù)段
static int    g_D;                    //BSS段
int            g_E;                    //BSS段
char        *p1;                    //BSS段
void main( )
{
    int           local_A;            //棧
    static int    local_C = 0;        //數(shù)據(jù)段
    static int    local_D;            //數(shù)據(jù)段

    char        *p3 = "123456";     //123456在代碼段，p3在棧上
    p1 = (char *)malloc( 10 );      //堆，分配得來得10字節(jié)的區(qū)域在堆區(qū)
    strcpy( p1, "123456" );         //123456{post.content}放在常量區(qū)，編譯器可能會將它與p3所指向 的"123456"優(yōu)化成一塊
    printf("\n");
    printf( "代碼段,全局初始化變量, 只讀const,  g_A,     addr:0x%08x\n", &g_A);
    printf("\n");
    printf( "數(shù)據(jù)段,全局變量,       初始化      g_B,     addr:0x%08x\n", &g_B);
    printf( "數(shù)據(jù)段,靜態(tài)全局變量,   初始化,     g_C,     addr:0x%08x\n", &g_C);
    printf("\n");
    printf( "BSS段, 全局變量,       未初始化    g_E,     addr:0x%08x\n", &g_E, g_E );   
    printf( "BSS段, 靜態(tài)全局變量,   未初始化,   g_D,     addr:0x%08x\n", &g_D );
    printf( "BSS段, 靜態(tài)局部變量,   初始化,     local_C, addr:0x%08x\n", &local_C);
    printf( "BSS段, 靜態(tài)局部變量,   未初始化,   local_D, addr:0x%08x\n", &local_D);
    printf("\n");
    printf( "棧,    局部變量,                   local_A, addr:0x%08x\n", &local_A );
    printf("\n");
    printf( "堆,    malloc分配內(nèi)存,             p1,      addr:0x%08x\n", p1 );
}