IO之Formatted IO

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08/10 09:44
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Formatted I/O


/* ANSI */
/* write a formatted string to the standard output stream */int printf(char *, ...);
/* write a formatted string to a buffer */int sprintf(char *, char *, ...);
/* write a formatted string to a buffer, not exceeding buffer size */int snprintf(char *, size_t, char *, ...);
/* write a formatted string to a stream */int fprintf(FILE *, char *, ...);
/* write a formatted string to a stream */int vfprintf(FILE *, char *, va_list);
/* write a string formatted with a variable argument list to standard output */int vprintf(char *, va_list);
/* write a string formatted with a variable argument list to a buffer */int vsprintf(char *, char *, va_list);
/* write a string formatted with a variable argument list to a buffer, not exceeding buffer size */int vsnprintf(char *, size_t, char *, va_list);
/* write a formatted string to an output function */int oprintf(OPRINTF_OUTPUT_FUNCPTR routine, _Vx_usr_arg_t arg, char *, ...);
/* write a formatted string to an output function */int voprintf(OPRINTF_OUTPUT_FUNCPTR routine , _Vx_usr_arg_t arg, char *, va_list);
/* read and convert characters from the standard input stream */int scanf(char *, ...);
/* read and convert characters from an ASCII string */int sscanf(char *, char *, ...);
/* read and convert characters from a stream */int fscanf(FILE *, char *, ...);

格式化的定义可以看这里

printf的格式化输出与转义字符

/* WRS functions declarations */
/* write a formatted string to a file descriptor */int fdprintf(int, char *, ...);
/* write a string formatted with a variable argument list to a file descriptor */int vfdprintf(int, char *, va_list);
/* write a formatted string to the standard error stream */int printErr(char *, ...);
/* print an exception-generated error message */void printExc(char *, int, int, int, int, int);

当然了,还有kprintf

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