c语言文件操作sfdjr
文件管理功能
文件打开/关闭
FILE，*infile，=fopen(ride？ ) )、腼腆的项链)；
flose(INF自定义e )；
文件读取：
Fgetc:
格式： int fgetc (文件^流)；
readsacharacterfromthefilepointingtothefilepointerstream？
thereturnvalueofthisfunctionisabytethatreturnstheread.returns eof (-1 ) ifitreadattheendofthefileorwhentheeerrrorisread。
Fgets:
theprototypeischar*fgets(char、*s、int、n、FILE、* stream )；
Parameter:
* s : characterpointertothedataaddressthatwillbestored。
n :集成数据，whichreadsn-1 charactersfromthestream。
^stream: pointer data，the stream to read。
功能：
readntcharactersfromthefilepointerstream，saveinthespacewheresisthestartingaddress，until you have completed a row，andifsucccescestestred
Fscanf:
Function name: fscanf
function : performsformattedinputfromastream，fscanfendswithspacesandlinebreaks，and ends with spaces？ This is different from fgets，wherefgetsencountersspacesthatdonotend。
Usage: int，fscanf (文件、^stream、char、^format、
int fscanf (文件指针，格式字符串，输入列表)；
Example:wldny，%s%d%lf，a，b，c )
Return value: integer，valueequaltothenumberof [ argument？ _
Fread:
Function prototypes: size_t，fread(void、^buffer、size_t、size、size_t、count、FILE、^stream )；
function : readdatafromafilestream，read count elements，each element size bytes？ If the call succeeds，返回计数？ If the call is successful，theactualreadsize * countbytesareread
Parameter:
buffer : isusedtoreceivedatamemoryaddresses，at least size*count bytes in size
size : thesizeofasingleelement，in bytes
The number of count: elements，each of which is size bytes？ stream :输入流
return value 3360 thenumberofelementsactuallyread.ifthereturnvalueisnotthesameascount，theendorerrorofthe
getstheerrorinformationfromferrorandf