hexdump s 0 n 52 CʵÀý helloworld
[root@localhost test]# hexdump -s 0 -n 52 -C helloworld
00000000 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00 |.ELF............|
00000010 02 00 03 00 01 00 00 00 10 83 04 08 34 00 00 00 |............4...|
00000020 30 08 00 00 00 00 00 00 34 00 20 00 08 00 28 00 |0.......4. ...(.|
00000030 1e 00 1b 00 |....|
00000034
[root@localhost test]#
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´ð´í5µÀÌâÒÔÄÚ£¬ÎÒÃÇÈÏΪÄ㻹²»´í(Ä ......
1.
printf("%.9lf\n",sum);
//Êä³öСÊýµãºó9λ²»Ê¡È¥Ä©Î²¶àÓàµÄ0
2.
printf("%.10g\n",sum);
//Êä³öСÊýµãºó9λ²»Ê¡È¥Ä©Î²¶àÓàµÄ0
3.
#include<iomanip>
cout<<setprecision(10)<<sum<<endl;
//Êä³öСÊýµãºó9λʡȥĩβ¶àÓàµÄ0
4.
#include<iomanip>
cout.pre ......
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar num;
void main()
{
TMOD=0x01;
TH0=(65536-45872)/256;
TL0=(65536-45872)%256;
EA=1;
ET0=1;
TR0=1;
P1=0xFF;
while(1);
}
void T0_time() interrupt 1
{
  ......
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pic from http://edmulroy.portbridge.com/oview.htm
2. cµÄÔ¤´¦Àí
Ô¤±àÒë³ÌÐòËùÍê³ÉµÄ»ù±¾ÉÏÊǶÔÔ´³ÌÐòµÄ& ......