Language in C 面试题与答案
Question: How do I convert a floating-point number to a string?
Answer: Use function gcvt( ) to convert a floating-point number to a string. Following program demonstrates the use of this function.#include <stdlib.h> main( ) { char str[25] ; float no ; int dg = 5 ; /* significant digits */ no = 14.3216 ; gcvt ( no, dg, str ) ; printf ( "String: %sn", str ) ; } |
保存以便复习
收藏此条目、标记为困难题，或将其加入复习集合。
这有帮助吗？ 是 否
用户评价最有帮助的内容：
- What will be the output of the following code?
void main ()
{ int i = 0 , a[3] ;
a[i] = i++;
printf ("%d",a[i]) ;
} - Why doesn't the following code give the desired result?
int x = 3000, y = 2000 ;
long int z = x * y ; - Why doesn't the following statement work?
char str[ ] = "Hello" ;
strcat ( str, '!' ) ; - How do I know how many elements an array can hold?
- How do I compare character data stored at two different memory locations?