我编写了此函数，该函数需要用户输入指定长度的指定屏幕：
Mapping 1 to random val 47
Testing 47 < 50 true
Mapping 1 to random val 57
Mapping 57 to NSNumber
Mapping 57 to String
Mapping 2 to random val 6
Testing 6 < 50 true
Mapping 3 to random val 33
Testing 33 < 50 true
Mapping 4 to random val 21
Testing 21 < 50 true
Mapping 5 to random val 2
Testing 2 < 50 true
Mapping 6 to random val 75
Testing 75 < 50 false
Mapping 7 to random val 45
Testing 45 < 50 true
Mapping 8 to random val 72
Testing 72 < 50 false
Mapping 9 to random val 1
Testing 1 < 50 true
Mapping 10 to random val 67
Testing 67 < 50 false
Mapping 2 to random val 3
Testing 3 < 50 true
Mapping 2 to random val 3
Mapping 3 to NSNumber
Mapping 3 to String
Mapping 3 to random val 6
Testing 6 < 50 true
Mapping 3 to random val 86
Mapping 86 to NSNumber
Mapping 86 to String
Mapping 4 to random val 72
Testing 72 < 50 false
Mapping 5 to random val 2
Testing 2 < 50 true
Mapping 5 to random val 73
Mapping 73 to NSNumber
Mapping 73 to String
Mapping 6 to random val 31
Testing 31 < 50 true
Mapping 6 to random val 53
Mapping 53 to NSNumber
Mapping 53 to String
Mapping 7 to random val 31
Testing 31 < 50 true
Mapping 7 to random val 42
Mapping 42 to NSNumber
Mapping 42 to String
Mapping 8 to random val 41
Testing 41 < 50 true
Mapping 8 to random val 23
Mapping 23 to NSNumber
Mapping 23 to String
Mapping 9 to random val 52
Testing 52 < 50 false
Mapping 10 to random val 13
Testing 13 < 50 true
Mapping 10 to random val 81
Mapping 81 to NSNumber
Mapping 81 to String
Mapping 1 to random val 84
Testing 84 < 50 false
Mapping 2 to random val 1
Testing 1 < 50 true
Mapping 2 to random val 82
Mapping 82 to NSNumber
Mapping 82 to String
Mapping 2 to random val 10
Mapping 10 to NSNumber
Mapping 10 to String
Mapping 3 to random val 58
Testing 58 < 50 false
Mapping 4 to random val 98
Testing 98 < 50 false
Mapping 5 to random val 12
Testing 12 < 50 true
Mapping 5 to random val 9
Mapping 9 to NSNumber
Mapping 9 to String
Mapping 5 to random val 59
Mapping 59 to NSNumber
Mapping 59 to String
Mapping 6 to random val 49
Testing 49 < 50 true
Mapping 6 to random val 29
Mapping 29 to NSNumber
Mapping 29 to String
Mapping 6 to random val 57
Mapping 57 to NSNumber
Mapping 57 to String
Mapping 7 to random val 20
Testing 20 < 50 true
Mapping 7 to random val 87
Mapping 87 to NSNumber
Mapping 87 to String
Mapping 7 to random val 51
Mapping 51 to NSNumber
Mapping 51 to String
Mapping 8 to random val 2
Testing 2 < 50 true
Mapping 8 to random val 93
Mapping 93 to NSNumber
Mapping 93 to String
Mapping 8 to random val 11
Mapping 11 to NSNumber
Mapping 11 to String
Mapping 9 to random val 18
Testing 18 < 50 true
Mapping 9 to random val 47
Mapping 47 to NSNumber
Mapping 47 to String
Mapping 9 to random val 96
Mapping 96 to NSNumber
Mapping 96 to String
Mapping 10 to random val 10
Testing 10 < 50 true
Mapping 10 to random val 44
Mapping 44 to NSNumber
Mapping 44 to String
Mapping 10 to random val 76
Mapping 76 to NSNumber
Mapping 76 to String
我正在使用具有主要功能的curses.wrapper来设置所有窗口。当我在包装器给定的主窗口中调用get_str时，该函数按预期工作。按下退格键可将最后一个字符移出屏幕，并将光标向后移动。但是，当我在主窗口的子窗口中调用它时，“ ^？”显示，并且不会触发if tmp =='KEY_BACKSPACE'语句。这是我设置子窗口的方式：`
def get_str(scr, max_len):
curses.echo()
curses.curs_set(2)
usr_in = ''
cur_len = 1;
tmp = scr.getkey()
while(tmp != '\n' and cur_len < max_len):
if tmp == 'KEY_BACKSPACE' and cur_len > 1:
cur_len -= 1
usr_in = usr_in[:-1]
curs_pos = scr.getyx()
scr.addstr(curs_pos[0], curs_pos[1], " ")
scr.move(curs_pos[0], curs_pos[1])
else:
usr_in += tmp
cur_len += 1
tmp = scr.getkey()
if(cur_len == max_len):
usr_in += tmp
curses.noecho()
curses.curs_set(0)
return usr_in
答案 0 :(得分：1)
子窗口不继承keypad设置。创建窗口时，如果要读取发送“任何”命名的 city name region
0 Toronto North
1 San Jose West
2 Houston South
3 Dallas South
符号的键，则必须进行设置。