JAVA中转义字符1.八进制转义序列:\+1到3位5数字;范围'\000'~'\377'\0:空字符2.Unicode转义字符:\u+四个十六进制数字;0~65535\u0000:空字符3.特殊字符:就3个\":双引号\':单引号\\:反斜线4.控制字符:5个\'单引号字符\\反斜杠字符\r回车(return)\n换行(newline)\f走纸换页(formfeed)\t横向跳格(tab)\b退格(backspace)