c语言个人财务管理系统[1]

ull)//只允许写数据{printf("cannotopenthefile.\n");return;}for(i=0;i<max;i++)if(fwrite(&r[i],sizeof(structlist_record),1,fp)!=1)printf("filewriteerror.\n");fclose(fp);}//文件读出voidload(){FILE*fp;inti;if((fp=fopen("wenjian","rb"))==null){printf("cannotopeninfile.\n");return;}for(i=0;i<max;i++)if(fread(&r[i],sizeof(structlist_record),1,fp)!=1){if(feof(fp))//文件结束为1;否则为0(fclose(fp));Return;//为什么在这加return}fclose(fp);}//将用户输入的帐号与系统中原有帐号比较,ounts(structlist_recordr[],[]){inti;for(i=0;i<3;i++)if(strcmp(r[i].account,acc)==0){returnok;}printf("帐号不存在,请重新输入!\n");returnnull;}//检查密码函数structlist_recordcheck_code(structlist_recordr[],[],charc[]){inti;structlist_recorda;strcpy(a.account,"0");strcpy(a.code,"0");a.rec_len=0;for(i=0;i<a.rec_len;i++){strcpy(a.rec[i].date,"0");strcpy(a.rec[i].operate,"0");a.rec[i].num=0;