java在不同系统有不同的换行符
//从当前系统中获取换行符,默认是"\n"
String lineSeparator = System.getProperty("line.separator", "\n");
String[] arr = fileContet.splite(lineSeparator );
//从当前系统中获取换行符,默认是"\n"
String lineSeparator = System.getProperty("line.separator", "\n");
String[] arr = fileContet.splite(lineSeparator );