c - 我正在用 C 语言做一个简单的数据库管理项目。但是当我运行此代码时出现错误。

Question

我试图将用户给出的文件名与字符串数组进行比较。当我运行此代码时，出现错误:
在函数“add_record”中:
']' 标记之前存在语法错误

此外，即使我删除从“开始”到“停止”的代码，我也会收到错误:
i:\gw\lib\crt2.o(.text+0x8) 在函数 _mingw_CRTStartup':<br/>
[Linker error] undefined reference to 中__dyn_tls_init_callback'
[链接器错误]对`__cpu_features_init'的 undefined reference
i:\gw\lib\crt2.o(.text+0x8) ld 返回 1 退出状态

请帮助我。谢谢!

void add_record()
{
 FILE *fp;
 char filename[25],fname_check[NO_OF_FILE][25];
 char tester;
 int i;

 printf("Type the name of the file you want to store the record in : ");
 scanf("%s",filename);
 //start
 for(i=0;i<sizeof(fname_check);i++)
 {
                                   if(strcmp(fname_check[i][],filename) == 0) printf("File already exists!\n");
                                   break;
                                   }
 printf("The file will be overwritten if you enter the same name.....\n");                                  

 printf("Type the name of the file you want to store the record in : ");
 scanf("%s",filename);
   //end                              

 fp = fopen(filename,"w");
 if(fp == NULL)
 {
       printf("Sorry,File cannot be opened!");
       getch();
       exit(0);
       }

 while(1)
 {
         fflush(stdin);
  printf("\nEnter name : ");
  gets(pro.name);
  printf("Enter age : ");
  scanf("%d",&pro.age);
  printf("Enter gender : ");
  gets(pro.gender); 
  printf("Enter phone : ");
  scanf("%d",&pro.phone); 
  printf("Enter email : ");
  gets(pro.email);
  printf("Enter location : ");
  gets(pro.location);
  printf("Enter bio : ");
  gets(pro.bio);

  printf("If you want to add more records press any key... or press ESC key... ");
  tester = getche();
  if(tester == 27) break;
 }
 fclose(fp);

} enter code here

Answer 1

fname_check[i][]无效。您所需要的只是fname_check[i]这是一个字符串。

此外，您必须循环直到 i < sizeof(fname_check)\sizeof(fname_check[0]) ，自 sizeof(fname_check)将给出数组的总大小(以字节为单位)。