n.文件定位

The fseek() function seeks in an open file. 函數(shù)的作用是：查找文件中指針?biāo)赶虻膬?nèi)容。

As an example, the default implementation of streams is located in the file src/base/ftsystem.c and uses the ANSI fopen(), fseek(), and fread() calls. 舉例來說，流的缺省實現(xiàn)位于文件src/base/ftsystem.

fread,fwrite,fseek vs createfile,&n... 函數(shù)的重載叫編譯時的多態(tài)性對不?

fseek($fp,$offset,seek_set); 得到了漢字的區(qū)位值后，就開始計算偏移量了。