java转义字符
转义字符是以'\'开头的字符序列,可以理解为前导的字符\改变了紧接其后的那个字符的原意,如:'\n','\t','\0'.......
FileInputStream readFile = new FileInputStream("D:\\Java\\输入输出流\\java IO system\\FileInputStreamDemo.java");
FileInputStream readFile = new FileInputStream("D:/Java/输入输出流/java IO system/FileInputStreamDemo.java");