锘?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
#include
#include
#include
#include
int main(void)
{
int length, i;
char string[20]= "this is a string";
length = strlen(string);
for (i=0; i
string[i] = toupper(string[i]);
}
printf("%s\n",string);
system("pause");
return 0;
}