诅咒模块中的标准键功能 [英] Standard keys functions in curses module

问题描述

有一个简单的程序：

import curses
import time

window = curses.initscr()

curses.cbreak()
window.nodelay(True)

while True:
    key = window.getch()
    if key != -1:
        print key
    time.sleep(0.01)


curses.endwin()

如何打开不会忽略的模式输入，退格键和箭头键功能？或者只是将所有特殊字符添加到 elif中：

How can i turn on mode that doesn't ignore standart Enter, Backspace and Arrows keys functions? or only the way is to add all special characters to elif:

if event == curses.KEY_DOWN:
    #key down function

我正在尝试模式 curses.raw（）等，但没有效果...请添加示例，如果可以的话。

I'm trying modes curses.raw() and other, but there no effect... Please add example if you can.

推荐答案

这里是一个允许你保留退格的例子（记住退格的ASCII代码是127）：

Here is an example that allows you to keep backspace (keep in mind ASCII code for backspace is 127):

import curses
import time

window = curses.initscr()

curses.cbreak()
window.nodelay(True)
# Uncomment if you don't want to see the character you enter
# curses.noecho()
while True:
    key = window.getch()
    try:
        if key not in [-1, 127]:
           print key
    except KeyboardInterrupt:
        curses.echo()
        curses.nocbreak() # Reset the program, so the prompt isn't messed up afterwards
        curses.endwin()
        raise SystemExit
    finally:
        try:
            time.sleep(0.01)
        except KeyboardInterrupt:
            curses.echo()
            curses.nocbreak() # Reset the program, so the prompt isn't messed up afterwards
            curses.endwin()
            raise SystemExit
        finally:
            pass

不在[-1,127] 中的键忽略打印127（ASCII DEL）或-1（错误）。您可以为其他字符代码添加其他项目。


try / except / finally用于处理Ctrl-C。这将重置终端，以便您不会出现奇怪的提示输出ater运行。

这是一个指向官方Python文档的链接，以备将来参考：
https://docs.python.org/2.7/library/curses.html#module-curses


我希望这有帮助。

The key not in [-1, 127] ignores printing 127 (ASCII DEL), or -1 (error). You can add other items into this, for other character codes.

The try/except/finally is for handling Ctrl-C. This resets the terminal so you don't get weird prompt output ater running.
Here is a link to the official Python docs, for future reference:
https://docs.python.org/2.7/library/curses.html#module-curses

I hope this helps.

这篇关于诅咒模块中的标准键功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！