thegladiator:~/cp$ cat new.txt
Hello World This is a Trest Progyy
thegladiator:~/cp$ hexdump new.txt
0000000 6548 6c6c 206f 6f57 6c72 2064 6854 7369
0000010 6920 2073 2061 7254 7365 2074 7250 676f
0000020 7979 000a
0000023
该文本数据如何以十六进制表示?这是什么意思?