取字符串"asdxyz \n"并将\n替换为ascii值

s = "asdxyz \n"
s = s.replace('\n', str(ord('\n')))
print(s)

public class Main {
    public static void main(String[] args) {
        String s = "asdxyz \n";
        s = s.replace("\n", String.valueOf((int) '\n'));
        System.out.println(s);
    }
}

let s = "asdxyz \n";
s = s.replace('\n', String.fromCharCode(10));
console.log(s);