查找数组内元素进行比较输出时的问题

    char name[20];
                printf("请输入您要查询的姓名\n");
                scanf("%s",&name);
                for(i=0;i<400;i++)
                {
                    
                    if(strcmp(students[i].name,name)==0)//对比查找
                    {
                        printf("学生信息为：\n");
                        printf("学号：    %s\n",students[i].number);
                        printf("姓名:     %s\n",students[i].name);
                        printf("性别：    %s\n",students[i].gender);
                        printf("年龄：    %d\n",students[i].age);
                        printf("专业班级：%s\n",students[i].major);
                     }
                     else if(i==399 && strcmp(students[i].name,name)==0)
                     {
                          printf("查无此人");
                          break;
                     }
                     else
                     {
                         continue;
                     }        
此段程序可以顺利进入 比较环节但是如果换成这段
                char number[20];
                printf("请输入您要查询的学号\n");
                scanf("%s",&number);
                for(i=0;i<400;i++)
                {
                    if(strcmp(students[i].number,number)==0)
                    {
                        printf("学生信息为：\n");
                        printf("学号：    %s\n",students[i].number);
                        printf("姓名:     %s\n",students[i].name);
                        printf("性别：    %s\n",students[i].gender);
                        printf("年龄：    %d\n",students[i].age);
                        printf("专业班级：%s\n",students[i].major);
                    }
                    else if(i==399 && strcmp(students[i].number,number)==0)
                     {
                          printf("查无此人");
                          break;
                     }
                     else
                     {
                         continue;
                     }                    
便无法进行比较，请问是哪里出了问题，我又应当如何修改
谢谢