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# include <stdio.h>
 
int main()
{
    /* ¶¨Òå±äÁ¿²¢¸³³õÖµ */
     int    a = 5;       
    char   c = 'a';   // 'a'µÄASCÂëµÄֵΪ97
    float  f = 5.3;     
    double m = 12.65; 
    double result;
     
    /* ͬÀàÐÍÊý¾Ý¼ä½øÐÐÔËËã²¢Êä³ö½á¹û */
    printf("a + c = %d\n", a + c);  // 97+5=102
    printf("a + c = %c\n", a + c);  // 102¶ÔÓ¦µÄASCIIÂë×Ö·ûΪ'f'
    printf("f + m = %f\n", f + m);  // 5.3+12.65=17.95
 
    /* ²»Í¬ÀàÐÍÊý¾Ý¼ä½øÐÐÔËËã²¢Êä³ö½á¹û */
    printf("a + m = %f\n", a + m);  //5+12.65=17.65
    printf("c + f = %f\n", c + f);  //97+5.3=102.3
 
    /* ½«ÉÏÊöËĸö±äÁ¿½øÐлìºÏÔËË㣬²¢Êä³ö½á¹û */
    result = a + c * (f + m);
    printf("double = %f\n", result);  //5+97*(5.3+12.65)=1746.15
    return 0;
}


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sudo apt-get install gcc g++ libgcc1 libg++ make gdb
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sudo apt-get install libmysql++-dev libmysql++2c2a libmysqlclient15-dev libmysqlclient15off
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sudo cp /usr/lib/mysql/* /usr/lib/
½¨Á¢Ò»¸öÐÂÎļþtest.cpp
vim test.cpp
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......

C struct ÖÐ×Ö½Ú¶ÔÆëÎÊÌâ

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struct MyStruct
{
    double m4;
    char m1;
    int  m3£»
};
s ......

ÃÀ¹úרÀû·¨Ìõ¿î102(c),102(d)

www.us-ip.com
ÃÀ¹úרÀû·¨Ìõ¿î102(c),102(d)
35 U.S.C. 102:
A person shall be entitled to a patent unless -
(c) he has abandoned the invention
102(c)Ìõ¿îÖ¸³öÈç¹û·¢Ã÷ÈËÒÅÆúÁË·¢Ã÷£¬ÄÇô·¢Ã÷È˽«²»ÄÜ»ñµÃÃÀ¹úרÀû¡£·¢Ã÷ÈËÒÅÆú·¢Ã÷±ØÐëÊǹÊÒâµÄÐÐΪ£¬²¢ÇÒÒâͼ½«ÒÅÆúµÄ·¢Ã÷·îÏ׸øÉç»á¡£·¢Ã÷È˲»Ò»¶¨ÐèÒª¹«¿ªÐûÊ¾Õ ......

ADC0809 C³ÌÐò

 #include<reg52.h>
#include<intrins.h>
#define uint  unsigned int
#define uchar unsigned char
uint date;
uchar mm=0,n=0;
uint k1,k2,k3,k4,k5,k6;
uchar code b[]={
    0x3f,0x06,0x5b,0x4f,0x66,   //0,1,2,3,4,
    0x6d,0x7d,0x07,0x7 ......

C/C++ÖеÄÄÚ´æ²¹Æë»úÖÆ

      ÔÚCÓïÑÔÖУ¬½á¹¹ÊÇÒ»ÖÖ¸´ºÏÊý¾ÝÀàÐÍ£¬Æä¹¹³ÉÔªËØ¼È¿ÉÒÔÊÇ»ù±¾Êý¾ÝÀàÐÍ£¨Èçint¡¢long¡¢floatµÈ£©µÄ±äÁ¿£¬Ò²¿ÉÒÔÊÇһЩ¸´ºÏÊý¾ÝÀàÐÍ£¨ÈçÊý×é¡¢½á¹¹¡¢ÁªºÏµÈ£©µÄÊý¾Ýµ¥Ôª¡£ÔڽṹÖУ¬±àÒëÆ÷Ϊ½á¹¹µÄÿ¸ö³ÉÔ±°´Æä×ÔÈ»¶Ô½ç£¨alignment£©Ìõ¼þ·ÖÅä¿Õ¼ä¡£¸÷¸ö³ÉÔ±°´ÕÕËüÃDZ»ÉùÃ÷µÄ˳ÐòÔÚÄÚ´æÖÐ˳Ðò´ ......
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