这段代码演示将文件内容读入Chunks(20k)比较简单的方法是一个一个字符读取但速度很慢这个例子提供的方法能快速处理文件中的数据(6KB)-This code will demonstrate the contents of the documents read Chunks (20k), a relatively simple method is a one character to read, but very slow to provide examples of this approa