String str = "没转换的字符串";
StringBuffer sb = new StringBuffer(str) ;
sb.replace(0,sb.length()-1, "\n");
str = sb.toString();转换为GBK......
StringBuffer sb = new StringBuffer(str) ;
sb.replace(0,sb.length()-1, "\n");
str = sb.toString();转换为GBK......
调试欢乐多
String s = ...;
int n = 0;
int i = s.indexOf("\n",n);//i为位置 ,n为开始查找的位置