Keil CÖÐÓÃunsigned longҪעÒâµÄÎÊÌâ
Keil CÀïÓõ½ÁËunsigned long³¤ÕûÐͱäÁ¿£¬±àÒëʱ¶¼ÄÜͨ¹ý£¬µ«ÔËÐÐʱÀÏÊÇÒç³ö£¬Í¬»ï°Ù¶Èµ½ÁË´ËÌù£¬½â¾öÁËÎÊÌ⣬ÓÚÊÇתÌûÓÚ´Ë£º
½ñÌìµ÷ÊÔÒ»¸ö³Ë·¨£¬³öÁ˵ãÎÊÌ⣬ÏÈ¿´´úÂëʾÒ⣺
void test(void)
{
unsigned long mid1,mid2,mid3;
mid1=6*10000;//index1
mid2=7*10000;//index2
mid="8"*10000;//index3
}
Õ¦Ò»¿´£¬Õâ¶Î´úÂëËÆºõÊǶԵ쬯äʵ²»È»£¬Èç¹û¸ú×Ùµ÷ÊÔһϴúÂë¾Í»á·¢ÏÖ£º
mid1=0xea60=60000;
mid2=0x1170=4464;
mid3=0x3880=14464;
mid1ÊÇÕýÈ·µÄ£¬mid2ºÍmid3ÊÇ´íÎóµÄ£¡
²úÉú´íÎóµÄÔÒòÊÇ£º
±àÒëÆ÷ÔÚ±àÒëµÄʱºò°Ñ6*10000¡¢7*10000ÒÔ¼°8*10000¼ÆËãµÃÀ´µÄ½á¹û´æÔÚÁËÒ»¸öunsigned intÀàÐ͵ıäÁ¿µ±ÖУ¬unsigned intÀàÐͱäÁ¿µÄ×î´óÖµÊÇ0xffff£¬¼´65536£¬Òò´ËÔÚ index2Óëindex3ÐÐÖз¢ÉúÁËÊý¾ÝÒç³ö£¬µ¼Ö¼ÆËã´íÎó£¡
½â¾ö·½·¨£º
void test(void)
{
unsigned long mid1,mid2,mid3;
mid1=6*(unsigned long)10000;//index1
mid2=7*(unsigned long)10000;//index2
mid="8"*(unsigned long)10000;//index3
}
Çë×¢Ò⣬ÒÔÏ´úÂëÊÇ´íÎóµÄ!ÖÁÓÚ´íÎóÔÒò£¬´ó¼Ò×Ô¼º·ÖÎö°É¡£
void test(void)
{
unsigned long mid1,mid2,mid3;
mid1=(unsigned long)(6*10000);//index1
mid2=(unsigned long)(7*10000);//index2
mid=(unsigned long)(8*10000);//index3
}
Ïà¹ØÎĵµ£º
Ô´Âë:
# include <stdio.h>
int main()
{
/* sex´ú±íÊäѪÕßµÄÐÔ±ð£¬weight´ú±íÊäѪÕßµÄÌåÖØ£¬cubage´ú±íÊäѪÁ¿ */
int sex, weight, cubage;
printf("Çë¸ø³öÊäѪÕßµÄÐÔ±ð£¨Å®ÐÔΪ¸ºÊý£©ºÍÌåÖØ£º(ÓöººÅ¸ô¿ª)");
&nbs ......
Ô´Âë:
# include <stdio.h>
int main()
{
int i, j, k;
/* ±äÁ¿i´Ó0µ½4£¬±íʾËù»ÁâÐÎͼµÄµÚÒ»ÖÁµÚÎåÐÐ */
for(i = 0; i <= 4; i++)
{
/* ......
C Sharp(C#)ÖÐÈçºÎɾ³ýÎļþ(Îļþ¼Ð)
Ö±½Óɾ³ý:
using System.IO;
...
string filePath = @"D:\...\xxx.xxx";
if (File.Exists(filePath))
{
File.Delete(filePath);
}
else
{
Console. ......
ÊéÖÐÓм¸¸öÎÊÌâÓеãÄ£ºý¡£¼Ç¼һÏ¡£
Answer to Exercise 1-7
Write a program to print the value of EOF .
#include <stdio.h>
int main(void)
{
printf("The value of EOF is %d\n\n", EOF);
return 0 ......
ÒÔΪÒÑ¾ÕÆÎÕÌõ¼þ±àÒ룬Ԥ±àÒëµÄÒªÁìÁË£¬½á¹û»¹ÊÇ´æÔںܶàÒÅ©µÄµØ·½£¬ËùÒÔ¹æÕûһϣº
Ìõ¼þ±àÒ룺
1
#ifdef _XXXX
...³ÌÐò¶Î1...
#else
...³ÌÐò¶Î2...
#endif
Õâ±íÃ÷Èç¹û±êʶ·û_XXXXÒѱ»#defineÃüÁÒå¹ýÔò¶Ô³ÌÐò¶Î1½øÐбàÒ룻·ñÔò¶Ô³ÌÐò¶Î2½øÐбàÒë¡£
2
#ifndef _XXXX
...³ÌÐò¶Î1...
#else
...³ÌÐ ......