text: //
  // Created by zing on 5/17/2020.
  //
  
  #include <stdio.h>
  #include <string.h>
  
  int main(int argc, char *argv[]) {
      char string[32] = {};
      int i = sprintf(string, "hello world,hello %s","c");
      printf("%d\n", i);
      printf("%s\n", string);
      printf("%lu\n", strlen(string));
      printf("%lu\n", sizeof(string));
      return 0;
  }
  