tailieunhanh - HandBooks Professional Java-C-Scrip-SQL part 242

Tham khảo tài liệu 'handbooks professional java-c-scrip-sql part 242', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Reads one character 8-bit byte from io and returns its character code. Returns nil on EOF. rs Reads one line from io. Returns nil on EOF. req arg Calls ioctl 2 system call. Arguments and results are platform dependent. Not implemented on all platforms. See Returns the current line number in io. n Sets the current line number in io. Returns the process ID associated with io. Returns nil if no process exists. Returns the current position of the file pointer. offset Sets the position of the file pointer. arg. Writes the specified arguments to io. fmt arg. Writes the specified arguments to io after formatting them. For formatting specifiers see sprintf in len Reads only the specified number of bytes from io. If len isn t specified the entire file is read. Reads one character 8-bit byte from io. Raises an exception on EOF. rs Reads one line from io. Raises an exception on EOF. rs Reads all lines in io and returns them in an array. f Resets io to a copy off. The class of io may be changed as well. Moves the file pointer to the beginning of io. pos _ whence IO SEEK__SET Moves the file pointer. The starting point whence may be set to IO SEEK_SET beginning of stream IO SEEK_CUR current position or IO SEEK_END end of stream . Calls fstat 2 system call and returns a File Stat object. Returns true if sync mode is enabled for output. In sync mode the buffer is flushed after each write. mode Sets the sync mode for output to true or false. len Reads len bytes from io using read 2 system call. sysread should not be mixed with other reading IO methods. str Writes str to io using write 2 system call. syswrite should not be mixed with other writing IO methods or you may get unpredictable results. See See Returns io .