uop-p如何ásdn文本工作?

unicode是否有颠倒的字符?

u 可能是倒过来的 n .

倒过来的?

Unicode码 有颠倒的字符。他们以自己的名义“转身”:

ƍ U+018D LATIN SMALL LETTER TURNED DELTA
Ɯ U+019C LATIN CAPITAL LETTER TURNED M
ǝ U+01DD LATIN SMALL LETTER TURNED E
Ʌ U+0245 LATIN CAPITAL LETTER TURNED V
ɐ U+0250 LATIN SMALL LETTER TURNED A
ɒ U+0252 LATIN SMALL LETTER TURNED ALPHA
É¥ U+0265 LATIN SMALL LETTER TURNED H
ɯ U+026F LATIN SMALL LETTER TURNED M
É° U+0270 LATIN SMALL LETTER TURNED M WITH LONG LEG
ɹ U+0279 LATIN SMALL LETTER TURNED R
ɺ U+027A LATIN SMALL LETTER TURNED R WITH LONG LEG
É» U+027B LATIN SMALL LETTER TURNED R WITH HOOK
ʇ U+0287 LATIN SMALL LETTER TURNED T
ʌ U+028C LATIN SMALL LETTER TURNED V
ʍ U+028D LATIN SMALL LETTER TURNED W
ʎ U+028E LATIN SMALL LETTER TURNED Y
ʞ U+029E LATIN SMALL LETTER TURNED K
Ê® U+02AE LATIN SMALL LETTER TURNED H WITH FISHHOOK
ʯ U+02AF LATIN SMALL LETTER TURNED H WITH FISHHOOK AND TAIL
Ê´ U+02B4 MODIFIER LETTER SMALL TURNED R
ʵ U+02B5 MODIFIER LETTER SMALL TURNED R WITH HOOK
Ê» U+02BB MODIFIER LETTER TURNED COMMA
̒ U+0312 COMBINING TURNED COMMA ABOVE
ჹ U+10F9 GEORGIAN LETTER TURNED GAN
ᴂ U+1D02 LATIN SMALL LETTER TURNED AE
ᴈ U+1D08 LATIN SMALL LETTER TURNED OPEN E
ᴉ U+1D09 LATIN SMALL LETTER TURNED I
ᴔ U+1D14 LATIN SMALL LETTER TURNED OE
ᴚ U+1D1A LATIN LETTER SMALL CAPITAL TURNED R
ᴟ U+1D1F LATIN SMALL LETTER SIDEWAYS TURNED M
ᵄ U+1D44 MODIFIER LETTER SMALL TURNED A
ᵆ U+1D46 MODIFIER LETTER SMALL TURNED AE
ᵌ U+1D4C MODIFIER LETTER SMALL TURNED OPEN E
ᵎ U+1D4E MODIFIER LETTER SMALL TURNED I
ᵚ U+1D5A MODIFIER LETTER SMALL TURNED M
áµ· U+1D77 LATIN SMALL LETTER TURNED G
ᶛ U+1D9B MODIFIER LETTER SMALL TURNED ALPHA
ᶣ U+1DA3 MODIFIER LETTER SMALL TURNED H
ᶭ U+1DAD MODIFIER LETTER SMALL TURNED M WITH LONG LEG
ᶺ U+1DBA MODIFIER LETTER SMALL TURNED V
℩ U+2129 TURNED GREEK SMALL LETTER IOTA
Ⅎ U+2132 TURNED CAPITAL F
⅁ U+2141 TURNED SANS-SERIF CAPITAL G
⅂ U+2142 TURNED SANS-SERIF CAPITAL L
⅄ U+2144 TURNED SANS-SERIF CAPITAL Y
⅋ U+214B TURNED AMPERSAND
ⅎ U+214E TURNED SMALL F
⌙ U+2319 TURNED NOT SIGN
❛ U+275B HEAVY SINGLE TURNED COMMA QUOTATION MARK ORNAMENT
❝ U+275D HEAVY DOUBLE TURNED COMMA QUOTATION MARK ORNAMENT
⦢ U+29A2 TURNED ANGLE
Ɐ U+2C6F LATIN CAPITAL LETTER TURNED A
â±¹ U+2C79 LATIN SMALL LETTER TURNED R WITH TAIL
â±» U+2C7B LATIN LETTER SMALL CAPITAL TURNED E
Ꝿ U+A77E LATIN CAPITAL LETTER TURNED INSULAR G
ꝿ U+A77F LATIN SMALL LETTER TURNED INSULAR G
Ꞁ U+A780 LATIN CAPITAL LETTER TURNED L
ꞁ U+A781 LATIN SMALL LETTER TURNED L

然而,这还远远不是一套完整的。大多数倒装文字的工作方式是选择恰好与倒装字母有足够相似之处的字符。这相当于在计算器上键入0.7734来拼写“hELLO”。

什么时候±sdn'被复制并回显到十六进制转储程序中,字符串被视为:

75 CA 8D 6F 70 2D C7 9D 70 C4 B1 73 64 6E

UTF-8细分如下:

0x75      = U+0075 = LATIN SMALL LETTER U
0xCA 0x8D = U+028D = LATIN SMALL LETTER TURNED W
0x6F      = U+006F = LATIN SMALL LETTER O
0x70      = U+0070 = LATIN SMALL LETTER P
0x2D      = U+002D = HYPHEN MINUS
0xC7 0x9D = U+01DD = LATIN SMALL LETTER TURNED E
0x70      = U+0070 = LATIN SMALL LETTER P
0xC4 0xB1 = U+0131 = LATIN SMALL LETTER DOTLESS I
0x73      = U+0073 = LATIN SMALL LETTER S
0x64      = U+0064 = LATIN SMALL LETTER D
0x6E      = U+006E = LATIN SMALL LETTER N

它们只是unicode字符。

查看网页来源:

function flip() {
    var result = flipString(document.f.original.value);
    document.f.flipped.value = result;
}

function flipString(aString) {
    aString = aString.toLowerCase();
    var last = aString.length - 1;
    var result = "";
    for (var i = last; i >= 0; --i) {
        result += flipChar(aString.charAt(i))
    }
    return result;
}

function flipChar(c) {
    if (c == 'a') {
        return '\u0250'
    }
    else if (c == 'b') {
        return 'q'
    }
    else if (c == 'c') {
        return '\u0254' //Open o -- copied from pne

有一个自上而下的python模块。 https://pypi.org/project/upsidedown/