以下是我的代码。
log.txt包含[|] ^ [|] hello
我之前和之后的输出都是相同的..这是[|] ^ [|]你好
String file = "log.txt"
File file = new File(file);
FileReader fr = new FileReader(file);
BufferedReader br = new BuffredReader(fr);
while(String s = br.readLine())!=null) {
System.out.println("before replacing" +s);
String q = s.replaceAll("[|]^[|]^","hi")
System.out.println("After replacing :"+q);
}