存储.txt文件中文本行的整数值

Question

我正在尝试将文本文件的第二行和第三行中的10个整数存储到整数数组中。当我尝试编译时，我得到关于某些变量未声明的多个错误。

输入是分配给输入.txt文件的名称。

perm1和perm2都是大小为[10]的int数组。

int current_line = 0; //a line counter
while(fgets(line, 401, Input) != NULL){
  if(current_line == 1){
    sscanf(line, "%d %d %d %d %d %d %d %d %d %d", &n1, &n2, &n3, &n4, &n5, &n6, &n7, &n8, &n9, &n10);
    perm1[0] = n1;
    perm1[1] = n2;
    perm1[2] = n3;
    perm1[3] = n4;
    perm1[4] = n5;
    perm1[5] = n6;
    perm1[6] = n7;
    perm1[7] = n8;
    perm1[8] = n9;
    perm1[9] = n10;
  }
  else if(current_line == 2){
    sscanf(line, "%d %d %d %d %d %d %d %d %d %d", &n1, &n2, &n3, &n4, &n5, &n6, &n7, &n8, &n9, &n10);
    perm2[0] = n1;
    perm2[1] = n2;
    perm2[2] = n3;
    perm2[3] = n4;
    perm2[4] = n5;
    perm2[5] = n6;
    perm2[6] = n7;
    perm2[7] = n8;
    perm2[8] = n9;
    perm2[9] = n10;
  }
  else{
  //do nothing
  }
  current_line++;
}

当我编译这段代码时，它告诉我“line”是未声明的。它还告诉我n1，n2，n3等都是未声明的。

我该如何解决这个问题？