[英]Clearing output of a terminal program in Linux C
I want to clear the output of a C program produced with printf statements.我想清除用 printf 语句生成的 C 程序的输出。 I want to clear only one line, for example:
我只想清除一行,例如:
[source] [来源]
printf("AAAAAAAAAAAAAA\n");
printf("BBBBBBBBBBBBBB\n");
printf("CCCCCCCCCCCCCC\n");
printf("DDDDDDDDDDDDDD\n");
[terminal] [终端]
AAAAAAAAAAAAAA
BBBBBBBBBBBBBB
CCCCCCCCCCCCCC
DDDDDDDDDDDDDD
[I hope] [我希望]
AAAAAAAAAAAAAA
BBBBBBBBBBBBBB
CCCCCCCCCCCCCC
I will "DDDDDDDDDDDDDD" line in write other string.我将在“DDDDDDDDDDDDDD”行中写入其他字符串。 I just want the above A, B, C sentences to left.
我只想把上面的 A、B、C 句留下。 Only clear D sentences to change the other sentences, unconditionally output D sentences.
只清除D句改变其他句,无条件输出D句。
How do I do this?我该怎么做呢?
There're several ways to delete the DDDDDDDDDDDDDD有几种方法可以删除 DDDDDDDDDDDDDD
printf("\b");
printf("\r");
such as printf("\\033[8;5Hhello"); // Move to (8, 5) and output hello
比如
printf("\\033[8;5Hhello"); // Move to (8, 5) and output hello
printf("\\033[8;5Hhello"); // Move to (8, 5) and output hello
Other commands:其他命令:
printf("\033[XA"); // Move up X lines;
printf("\033[XB"); // Move down X lines;
printf("\033[XC"); // Move right X column;
printf("\033[XD"); // Move left X column;
printf("\033[2J"); // Clear screen
...
It is the best ways to control the exact layout and format in a terminal这是在终端中控制确切布局和格式的最佳方法
If you are using X-Term compatibles (Gnome Terminal included), then print the following如果您使用的是 X-Term 兼容软件(包括 Gnome 终端),请打印以下内容
printf("\033[2J");
or或者
cout << "\033[2J";
where \\033
is the escape character in ASCII and [2J
is the specific action (clear).其中
\\033
是ASCII 中的转义字符, [2J
是特定操作(清除)。
I tried answering for what is best expected here.我试着回答这里最好的预期。
printf("AAAAAAAAAAAAAA");
printf("BBBBBBBBBBBBBB");
printf("CCCCCCCCCCCCCC");
//printf("DDDDDDDDDDDDDD");
comment the last line or delete if you dont want to display in terminal.如果您不想在终端中显示,请注释最后一行或删除。 printf("xxxx") is the statement used for printing output in terminal.
printf("xxxx") 是用于在终端打印输出的语句。
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