我想用001,002,003,004替换"ababababababab"的"a"......即"001b002b003b004b005b ....."
int n=1
String test="ababababab";
int lo=test.lastIndexOf("a");
while(n++<=lo) Abstract=Abstract.replaceFirst("a",change(n));
//change is another function to return a string "00"+n;
但效率很低,当字符串足够大时,需要几分钟!
你有高效的方式吗？非常感谢!