提取字符串中的数字
需要从以下字符串中把里面的数字提取出来,字符串为:d:/test/aero-m0.2a0b2.5h3mass0.5提取出来的结果放到数组中:
[0.2 0 2.5 3 0.5];
尝试了使用sscanf未果,还请高手帮忙指点,谢谢
2021-08-06 15:59
2021-08-06 16:45
程序代码:#include <stdio.h>
void foo( const char* s )
{
printf( "\"%s\":\n\t", s );
for( int pos=0; ; )
{
int newpos = 0;
int n = sscanf( s+pos, "%*[^0-9]%n", &newpos );
if( n == EOF )
break;
pos += newpos;
double val;
n = sscanf( s+pos, "%lf%n", &val, &newpos );
if( n == EOF )
break;
if( n != 0 )
pos += newpos;
printf( " %g", val );
}
putchar( '\n' );
}
int main( void )
{
const char* s = "d:/test/aero-m0.2a0b2.5h3mass0.5";
foo( s );
foo( "" );
foo( "abc" );
foo( "123" );
foo( "abc123" );
foo( "123abc" );
foo( "abc123def456" );
foo( "abc123def456ghi" );
foo( "123abc456def" );
foo( "123abc456def789" );
}
2021-08-06 17:02
2021-08-06 17:16
2021-08-06 17:24
2021-08-16 13:26