101文件的概述 10.1.1文件和文件指针 3.缓冲文件和文件指针 ●文件类型指针 左油立玄然由丈位△汇左庙照饮立在 typedef struct short level; / fill/ empty level of buffer * unsigned flags; / File status flags char fd /* File descriptor ** unsigned char hold; / Ungetc char if no buffer * short bsize:/* Buffer size unsigned char *buffer;/* Data transfer buffer * unsigned char *curp; Current active pointer */ unsigned istemp 7=* Temporary file indicator * short token; / Used for validity checking * FILE /*k This is the File object * 2021-2-212021-2-21 9 typedef struct { short level; /* fill/empty level of buffer */ unsigned flags; /* File status flags */ char fd; /* File descriptor */ unsigned char hold; /* Ungetc char if no buffer */ short bsize; /* Buffer size */ unsigned char *buffer; /* Data transfer buffer */ unsigned char *curp; /* Current active pointer */ unsigned istemp; /* Temporary file indicator */ short token; /* Used for validity checking */ } FILE; /* This is the FILE object */