A line feed means moving one line forward. The code is
.
A carriage return means moving the cursor to the beginning of the line. The code is
.
Windows editors often still use the combination of both as
in text files. Unix uses mostly only the
.
The separation comes from typewriter times, when you turned the wheel to move the paper to change the line and moved the carriage to restart typing on the beginning of a line. This was two steps.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…