C語言printf()函數的格式化字符串
阿新 • • 發佈:2018-06-03
etc ogr run ring AS 字符 https 輸出 function
原文鏈接:
https://www.runoob.com/cprogramming/c-function-printf.html
#include<stdio.h>
#include<string.h>
int main(void)
{
charc,s[20],*p;
inta=1234,*i;
floatf=3.141592653589;
doublex=0.12345678987654321;
p="Howdoyoudo";
strcpy(s,"Hello,Comrade");
*i=12;
c=‘\x41‘;
printf("a=%d\n",a); /*結果輸出十進制整數a=1234*/
printf("a=%6d\n",a); /*結果輸出6位十進制數a=1234*/
printf("a=%06d\n",a); /*結果輸出6位十進制數a=001234*/
printf("a=%2d\n",a); /*a超過2位,按實際值輸出a=1234*/
printf("*i=%4d\n",*i); /*輸出4位十進制整數*i=12*/
printf("*i=%-4d\n",*i); /*輸出左對齊4位十進制整數*i=12*/
printf("i=%p\n",i); /*輸出地址i=06E4*/
printf("f=%f\n",f); /*輸出浮點數f=3.141593*/
printf("f=%6.4f\n",f); /*輸出6位其中小數點後4位的浮點數
f=3.1416*/
printf("x=%lf\n",x); /*輸出長浮點數x=0.123457*/
printf("x=%18.16lf\n",x); /*輸出18位其中小數點後16位的長浮點數x=0.1234567898765432*/
printf("c=%c\n",c); /*輸出字符c=A*/
printf("c=%x\n",c); /*輸出字符的ASCII碼值c=41*/
printf("s[]=%s\n",s); /*輸出數組字符串s[]=Hello,Comrade*/
printf("s[]=%6.9s\n",s); /*輸出最多9個字符的字符串s[]=Hello,Co*/
printf("s=%p\n",s); /*輸出數組字符串首字符地址s=FFBE*/
printf("*p=%s\n",p); /*輸出指針字符串p=Howdoyoudo*/
printf("p=%p\n",p); /*輸出指針的值p=0194*/
getch();
return 0;
}
C語言printf()函數的格式化字符串