用类方法和静态方法实现:一个是追加写文件一行内容,一个是读指定行号的内容 #coding=utf-8 class handle_file(object): def __init__(self,file_path): self.file_path=file_path @classmethod def write_file(cls,file_path,content): with open(file_path,'a') as
一.使用FileOutputStream 使用FileOutputStream,在构造FileOutputStream时,把第二个参数设为true public static void method1(String file, String conent) { BufferedWriter out = null; try { out = new BufferedWriter(new OutputStreamWriter( new FileOutputStream(file, true))); o