[C] 把浮点数转换成字符串 gcvt →→→→→进入此内容的聊天室

来自 , 2020-04-18, 写在 C, 查看 109 次.
URL http://www.code666.cn/view/329e6581
  1. int main ( void )
  2. {
  3.         char str[25];
  4.         double num;
  5.         int sig = 5; /* significant digits */
  6.         /* a regular number */
  7.         num = 9.876;
  8.         gcvt ( num, sig, str );
  9.         printf ( "string = %s\n", str );
  10.         /* a negative number */
  11.         num = -123.4567;
  12.         gcvt ( num, sig, str );
  13.         printf ( "string = %s\n", str );
  14.         /* scientific notation */
  15.         num = 0.678e5;
  16.         gcvt ( num, sig, str );
  17.         printf ( "string = %s\n", str );
  18.         return ( 0 );
  19. }

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