4:10pm ccbsd3:tststruct/> cat -n samp.c 
     1  //samp.c
     2  #include<stdio.h>
     3  #include<stdlib.h>
     4  typedef struct {
     5     long id;
     6     char name[9];
     7     float height;
     8     double score;
     9     int rank;  // Ω
    10  } Student;
    11  Student x[999];
    12  int getData( );
    13  void printData(int n, int flag);
    14  void sort( ) { }
    15  int main( ) {
    16     int nStu;
    17     nStu = getData( );
    18     printData(nStu, 0);
    19     printf("=== ===\n");
    20     sort( );
    21     printData(nStu, 1);
    22     return 0;
    23  }
    24  int getData( ){
    25     static char cn[ ][3]={ "化", "窥", "甝", "", "朝", "狶"};
    26     static char first[ ][5]= {
    27        "", "", "8", "4", "き", "", "地" };
    28     int cnLen = (sizeof(cn) / sizeof(cn[0]) );
    29     int firstLen =(sizeof(first) / sizeof(first[0]) );
    30     int i, k, n;
    31     long baseID = 9817000;
    32     k = 5;  // example
    33     for(i=1; i<= k; ++i) {  // 材 0 珿種ぃノ
    34        x[i].id = baseID + i;
    35        n = rand( ) % cnLen;
    36        strcpy(x[i].name, cn[n]);
    37        n = rand( ) % firstLen;
    38        strcat(x[i].name, first[n]);
    39     }
    40     return k;
    41  }
    42  void printData(int n, int flag){
    43      // n  data, x[1] .. x[n]; 猔種材 0 珿種ぃノ
    44     // flag == 0 ボぃΩ
    45     int i;
    46     for(i=1; i<=n; ++i) {
    47        printf("%ld ", x[i].id);
    48        printf("%9s ", x[i].name);
    49        if(flag!=0) printf(" %3d", x[i].rank);
    50        printf("\n");
    51     }
    52  }
4:10pm ccbsd3:tststruct/> gcc samp.c 
4:11pm ccbsd3:tststruct/> ./a.out
9817001    窥
9817002    狶地
9817003    朝地
9817004    化
9817005    狶
=== ===
9817001    窥    0
9817002    狶地    0
9817003    朝地    0
9817004    化    0
9817005    狶    0
4:11pm ccbsd3:tststruct/>