?HTML中<，>，&等有特殊含義（<，>，用于鏈接簽，&用于轉義），不能直接使用。這些符號是不顯示在我們最終看到的網頁里的，那如果我們希望在網頁中顯示這些符號，該怎么辦呢？

<script>
???? test = "你好abc"
???? str = ""
???? for( i=0;??? i<test.length; i++ )
???? {
????  temp = test.charCodeAt(i).toString(16);
????  str??? += "\\u"+ new Array(5-String(temp).length).join("0") +temp;
???? }
???? document.write (str)
</script>

Function Unicode(str1)
???? Dim str,temp
???? str = ""
???? For i=1??? to len(str1)
????  temp = Hex(AscW(Mid(str1,i,1)))
????  If len(temp) < 5 Then??? temp = right("0000" & temp, 4)
????  str = str & "\u" & temp
???? Next
???? Unicode = str
End Function

Function htmlentities(str)
???? For i = 1 to Len(str)
???????? char = mid(str, i, 1)
???????? If Ascw(char) > 128 then
???????????? htmlentities = htmlentities & "&#" & Ascw(char) & ";"
???????? Else
???????????? htmlentities = htmlentities & char
???????? End if
???? Next
End Function

function nochaoscode(str)
{
???? var new_str = “”;
???? for(i=1; i lte len(str);i=i+1){
???????? if(asc(mid(str,i,1)) lt 128){
???????????? new_str = new_str & mid(str,i,1);
???????? }else{
???????????? new_str = new_str & “&##” & asc(mid(str,i,1));
???????? }
???? }
???? return new_str;
}

keycode??? 8 = BackSpace BackSpace
keycode??? 9 = Tab Tab
keycode?? 12 = Clear
keycode?? 13 = Enter
keycode?? 16 = Shift_L
keycode?? 17 = Control_L
keycode?? 18 = Alt_L
keycode?? 19 = Pause
keycode?? 20 = Caps_Lock
keycode?? 27 = Escape Escape
keycode?? 32 = space space
keycode?? 33 = Prior
keycode?? 34 = Next
keycode?? 35 = End
keycode?? 36 = Home
keycode?? 37 = Left
keycode?? 38 = Up
keycode?? 39 = Right
keycode?? 40 = Down
keycode?? 41 = Select
keycode?? 42 = Print
keycode?? 43 = Execute
keycode?? 45 = Insert
keycode?? 46 = Delete
keycode?? 47 = Help
keycode?? 48 = 0 equal braceright
keycode?? 49 = 1 exclam onesuperior
keycode?? 50 = 2 quotedbl twosuperior
keycode?? 51 = 3 section threesuperior
keycode?? 52 = 4 dollar
keycode?? 53 = 5 percent
keycode?? 54 = 6 ampersand
keycode?? 55 = 7 slash braceleft
keycode?? 56 = 8 parenleft bracketleft
keycode?? 57 = 9 parenright bracketright
keycode?? 65 = a A
keycode?? 66 = b B
keycode?? 67 = c C
keycode?? 68 = d D
keycode?? 69 = e E EuroSign
keycode?? 70 = f F
keycode?? 71 = g G
keycode?? 72 = h H
keycode?? 73 = i I
keycode?? 74 = j J
keycode?? 75 = k K
keycode?? 76 = l L
keycode?? 77 = m M mu
keycode?? 78 = n N
keycode?? 79 = o O
keycode?? 80 = p P
keycode?? 81 = q Q at
keycode?? 82 = r R
keycode?? 83 = s S
keycode?? 84 = t T
keycode?? 85 = u U
keycode?? 86 = v V
keycode?? 87 = w W
keycode?? 88 = x X
keycode?? 89 = y Y
keycode?? 90 = z Z
keycode?? 96 = KP_0 KP_0
keycode?? 97 = KP_1 KP_1
keycode?? 98 = KP_2 KP_2
keycode?? 99 = KP_3 KP_3
keycode 100 = KP_4 KP_4
keycode 101 = KP_5 KP_5
keycode 102 = KP_6 KP_6
keycode 103 = KP_7 KP_7
keycode 104 = KP_8 KP_8
keycode 105 = KP_9 KP_9
keycode 106 = KP_Multiply KP_Multiply
keycode 107 = KP_Add KP_Add
keycode 108 = KP_Separator KP_Separator
keycode 109 = KP_Subtract KP_Subtract
keycode 110 = KP_Decimal KP_Decimal
keycode 111 = KP_Divide KP_Divide
keycode 112 = F1
keycode 113 = F2
keycode 114 = F3
keycode 115 = F4
keycode 116 = F5
keycode 117 = F6
keycode 118 = F7
keycode 119 = F8
keycode 120 = F9
keycode 121 = F10
keycode 122 = F11
keycode 123 = F12
keycode 124 = F13
keycode 125 = F14
keycode 126 = F15
keycode 127 = F16
keycode 128 = F17
keycode 129 = F18
keycode 130 = F19
keycode 131 = F20
keycode 132 = F21
keycode 133 = F22
keycode 134 = F23
keycode 135 = F24
keycode 136 = Num_Lock
keycode 137 = Scroll_Lock
keycode 187 = acute grave
keycode 188 = comma semicolon
keycode 189 = minus underscore
keycode 190 = period colon
keycode 192 = numbersign apostrophe
keycode 210 = plusminus hyphen macron
keycode 211 =
keycode 212 = copyright registered
keycode 213 = guillemotleft guillemotright
keycode 214 = masculine ordfeminine
keycode 215 = ae AE
keycode 216 = cent yen
keycode 217 = questiondown exclamdown
keycode 218 = onequarter onehalf threequarters
keycode 220 = less greater bar
keycode 221 = plus asterisk asciitilde
keycode 227 = multiply division
keycode 228 = acircumflex Acircumflex
keycode 229 = ecircumflex Ecircumflex
keycode 230 = icircumflex Icircumflex
keycode 231 = ocircumflex Ocircumflex
keycode 232 = ucircumflex Ucircumflex
keycode 233 = ntilde Ntilde
keycode 234 = yacute Yacute
keycode 235 = oslash Ooblique
keycode 236 = aring Aring
keycode 237 = ccedilla Ccedilla
keycode 238 = thorn THORN
keycode 239 = eth ETH
keycode 240 = diaeresis cedilla currency
keycode 241 = agrave Agrave atilde Atilde
keycode 242 = egrave Egrave
keycode 243 = igrave Igrave
keycode 244 = ograve Ograve otilde Otilde
keycode 245 = ugrave Ugrave
keycode 246 = adiaeresis Adiaeresis
keycode 247 = ediaeresis Ediaeresis
keycode 248 = idiaeresis Idiaeresis
keycode 249 = odiaeresis Odiaeresis
keycode 250 = udiaeresis Udiaeresis
keycode 251 = ssharp question backslash
keycode 252 = asciicircum degree
keycode 253 = 3 sterling
keycode 254 = Mode_switch

字母和數字鍵的鍵碼值(keyCode)
按鍵 鍵碼 按鍵 鍵碼 按鍵 鍵碼 按鍵 鍵碼
　　A
?65 J 74 S 83 1 49
B 66 K 75 T 84 2 50
C 67 L 76 U 85 3 51
D 68 M 77 V 86 4 52
E 69 N 78 W 87 5 53
F 70 O 79 X 88 6 54
G 71 P 80 Y 89 7 55
H 72 Q 81 Z 90 8 56
I 73 R 82 0 48 9 57
數字鍵盤上的鍵的鍵碼值(keyCode) 功能鍵鍵碼值(keyCode)
按鍵 鍵碼 按鍵 鍵碼 按鍵 鍵碼 按鍵 鍵碼
　　0
?96 8 104 F1 112 F7 118
1 97 9 105 F2 113 F8 119
2 98 * 106 F3 114 F9 120
3 99 + 107 F4 115 F10 121
4 100 Enter 108 F5 116 F11 122
5 101 - 109 F6 117 F12 123
6 102 　　.
?110????????
7 　　103
?/ 111????????
控制鍵鍵碼值(keyCode)
按鍵 鍵碼 按鍵 鍵碼 按鍵 鍵碼 按鍵 鍵碼
BackSpace 8 Esc 27 Right Arrow 39 -_ 189
Tab 9 Spacebar 32 Down Arrow 40 .> 190
Clear 12 Page Up 33 Insert 45 /? 191
Enter 13 Page Down 34 Delete 46 `~ 192
Shift 16 End 35 Num Lock 144 [{ 219
Control 17 Home 36 ;: 186 \| 220
Alt 18 Left Arrow 37 =+ 187 ]} 221
Cape Lock 20 Up Arrow 38 ,< 188 '" 222