有没有办法可以屏蔽“print scrn”键？？

Question

可以根据其的键盘码来判断用户是否按了“print scrn”键来处理?

Answer 1

我记得他的键盘码好象是46
是可以激发keypress事件

Answer 2

46是错的.
ISO Latin 1 Character Entities and HTML Escape Sequence Table-------------------------------------------------------------------------------- #     Symbol HTML Code | #     Symbol HTML Code
=============================================================== 32     |143  
 33 ! ! |144  
 34 " " |145 ‘ ‘
 35 # # |146 ’ ’
 36 $ $ |147 “ “
 37 % % |148 ” ”
 38 & & |149 • •
 39 ' ' |150 – –
 40 ( ( |151 — —
 41 ) ) |152 ˜ ˜
 42 * * |153 ™ ™
 43 + + |154 š š
 44 , , |155 › ›
 45 - - |156 œ œ
 46 . . |157  
 47 / / |158 ž ž
 48 0 0 |159 Ÿ Ÿ
 49 1 1 |160    
 50 2 2 |161 ¡ ¡
 51 3 3 |162 ¢ ¢
 52 4 4 |163 £ £
 53 5 5 |164 ¤ ¤
 54 6 6 |165 ¥ ¥
 55 7 7 |166 ¦ ¦
 56 8 8 |167 § §
 57 9 9 |168 ¨ ¨
 58 : : |169 © ©
 59 ; &#59; |170 ª ª
 60 < &#60; |171 &laquo; &#171;
 61 = &#61; |172 &not; &#172;
 62 > &#62; |173 &shy; &#173;
 63 ? &#63; |174 &reg; &#174;
 64 @ &#64; |175 &macr; &#175;
 65 A &#65; |176 ° &#176;
 66 B &#66; |177 ± &#177;
 67 C &#67; |178 &sup2; &#178;
 68 D &#68; |179 &sup3; &#179;
 69 E &#69; |180 &acute; &#180;
 70 F &#70; |181 &micro; &#181;
 71 G &#71; |182 &para; &#182;
 72 H &#72; |183 · &#183;
 73 I &#73; |184 &cedil; &#184;
 74 J &#74; |185 &sup1; &#185;
 75 K &#75; |186 &ordm; &#186;
 76 L &#76; |187 &raquo; &#187;
 77 M &#77; |188 &frac14; &#188;
 78 N &#78; |189 &frac12; &#189;
 79 O &#79; |190 &frac34; &#190;
 80 P &#80; |191 &iquest; &#191;
 81 Q &#81; |192 &Agrave; &#192;
 82 R &#82; |193 &Aacute; &#193;
 83 S &#83; |194 &Acirc; &#194;
 84 T &#84; |195 &Atilde; &#195;
 85 U &#85; |196 &Auml; &#196;
 86 V &#86; |197 &Aring; &#197;
 87 W &#87; |198 &AElig; &#198;
 88 X &#88; |199 &Ccedil; &#199;
 89 Y &#89; |200 &Egrave; &#200;
 90 Z &#90; |201 &Eacute; &#201;
 91 [ &#91; |202 &Ecirc; &#202;
 92 \ &#92; |203 &Euml; &#203;
 93 ] &#93; |204 &Igrave; &#204;
 94 ^ &#94; |205 &Iacute; &#205;
 95 _ &#95; |206 &Icirc; &#206;
 96 ` &#96; |207 &Iuml; &#207;
 97 a &#97; |208 &ETH; &#208;
 98 b &#98; |209 &Ntilde; &#209;
 99 c &#99; |210 &Ograve; &#210;
100 d &#100; |211 &Oacute; &#211;
101 e &#101; |212 &Ocirc; &#212;
102 f &#102; |213 &Otilde; &#213;
103 g &#103; |214 &Ouml; &#214;
104 h &#104; |215 × &#215;
105 i &#105; |216 &Oslash; &#216;
106 j &#106; |217 &Ugrave; &#217;
107 k &#107; |218 &Uacute; &#218;
108 l &#108; |219 &Ucirc; &#219;
109 m &#109; |220 &Uuml; &#220;
110 n &#110; |221 &Yacute; &#221;
111 o &#111; |222 &THORN; &#222;
112 p &#112; |223 &szlig; &#223;
113 q &#113; |224 à &#224;
114 r &#114; |225 á &#225;
115 s &#115; |226 &acirc; &#226;
116 t &#116; |227 &atilde; &#227;
117 u &#117; |228 &auml; &#228;
118 v &#118; |229 &aring; &#229;
119 w &#119; |230 &aelig; &#230;
120 x &#120; |231 &ccedil; &#231;
121 y &#121; |232 è &#232;
122 z &#122; |233 é &#233;
123 { &#123; |234 ê &#234;
124 | &#124; |235 &euml; &#235;
125 } &#125; |236 ì &#236;
126 ~ &#126; |237 í &#237;
127  &#127; |238 &icirc; &#238;
128 &#8364; &#128; |239 &iuml; &#239;
129 &#129; &#129; |240 &eth; &#240;
130 &#8218; &#130; |241 &ntilde; &#241;
131 &#402; &#131; |242 ò &#242;
132 &#8222; &#132; |243 ó &#243;
133 … &#133; |244 &ocirc; &#244;
134 &#8224; &#134; |245 &otilde; &#245;
135 &#8225; &#135; |246 &ouml; &#246;
136 &#710; &#136; |247 ÷ &#247;
137 ‰ &#137; |248 &oslash; &#248;
138 &#352; &#138; |249 ù &#249;
139 &#8249; &#139; |250 ú &#250;
140 &#338; &#140; |251 &ucirc; &#251;
141 &#141; &#141; |252 ü &#252;
142 &#381; &#142; |253 &yacute; &#253;
143 &#143; &#143; |254 &thorn; &#254;

Answer 3

说错了
在IE5里，当按下print scrn键时，只触发 onkeydown 和 onkeyup 事件，而不会触发 onkeypress 事件，可以通过 event.keyCode == 44 来进行捕捉。
<INPUT onkeyup=this.value=event.keyCode>

Answer 4

你们怎么都想的好复杂，用flash阿，

Answer 5

onkeyup....但是这样仅仅是捕作到了~~~并无法屏蔽啊~~