下载一个C语言学习系统,我就是通过这个自学的http://www.baidu.com/s?ie=gb2312&bs=C%D3%EF%D1%D4%D1%A7%CF%B0%C8%ED%BC%FE&sr=&z=&wd=C%D3%EF%D1%D4%D1%A7%CF%B0%CF%B5%CD%B3&ct=0&cl=3&f=8