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<head>
<title>string</title>
</head>
<body>
<h1>string</h1>
<p>ëÏÍÁÎÄÁ ÄÌÑ ÒÁÂÏÔÙ ÓÏ ÓÔÒÏËÁÍÉ.</p>
<h2>óéîôáëóéó</h2>
<pre>
<strong>string</strong> <strong>option</strong> <em>arg</em> ?<em>arg</em>...?
</pre>
<h2>ïðéóáîéå</h2>
<p>÷ÙÐÏÌÎÑÅÔ ÏÄÎÕ ÉÚ ÐÅÒÅÞÉÓÌÅÎÎÙÈ ÎÉÖÅ ÓÔÒÏËÏ×ÙÈ ÏÐÅÒÁÃÉÊ ×
ÚÁ×ÉÓÉÍÏÓÔÉ ÏÔ ÚÁÄÁÎÎÏÊ ÏÐÃÉÉ <em>option</em>.</p>
<dl>
<dt><a name="string compare"></a><strong>string</strong> <strong>compare</strong>
<em>string1</em> <em>string2</em></dt>
<dd>÷ÙÐÏÌÎÑÅÔ ÐÏÓÉÍ×ÏÌØÎÏÅ ÓÒÁ×ÎÅÎÉÅ ÓÔÒÏË <em>string1</em> É <em>
string2</em> ÔÁË ÖÅ, ËÁË ó-ÐÒÏÃÅÄÕÒÁ <strong>strcmp</strong>. ÷ÏÚ×ÒÁÝÁÅÔ
<strong>-1, 0</strong> ÉÌÉ <strong>1</strong>, × ÚÁ×ÉÓÉÍÏÓÔÉ ÏÔ ÔÏÇÏ, ÂÕÄÅÔ ÌÉ
ÓÔÒÏËÁ <em>string1</em> ÂÏÌØÛÅ, ÒÁ×ÎÁ ÉÌÉ ÍÅÎØÛÅ (ÐÒÉ
ÌÅËÓÉËÏÇÒÁÆÉÞÅÓËÏÍ ÓÒÁ×ÎÅÎÉÉ) ÓÔÒÏËÉ <em> string2</em>.
</dd>
<dt><strong><a name="string first"></a>string</strong> <strong>first</strong>
<em>string1</em> <em>string2</em></dt>
<dd>éÝÅÔ × ÓÔÒÏËÅ <em>string2</em> ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÓÉÍ×ÏÌÏ×, ×
ÔÏÞÎÏÓÔÉ ÓÏ×ÐÁÄÁÀÝÕÀ ÓÏ <em>string1</em>. åÓÌÉ ÔÁËÁÑ
ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÅÓÔØ, ×ÏÚ×ÒÁÝÁÅÔ ÉÎÄÅËÓ ÐÅÒ×ÏÊ ÂÕË×Ù ×
ÐÅÒ×ÏÊ ÎÁÊÄÅÎÎÏÊ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔÉ. ÷ ÐÒÏÔÉ×ÎÏÍ ÓÌÕÞÁÅ
×ÏÚ×ÒÁÝÁÅÔ -1.
</dd>
<dt><strong><a name="string index"></a>string</strong> <strong>index</strong> <em>string</em>
<em>charIndex</em></dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ <em>charIndex</em>-ÎÙÊ ÓÉÍ×ÏÌ × ÓÔÒÏËÅ <em>
string</em>. úÎÁÞÅÎÉÅ <em>charIndex</em>, ÒÁ×ÎÏÅ 0,
ÓÏÏÔ×ÅÔÓÔ×ÕÅÔ ÐÅÒ×ÏÍÕ ÓÉÍ×ÏÌÕ × ÓÔÒÏËÅ. åÓÌÉ ÚÎÁÞÅÎÉÅ <em>
charIndex</em> ÍÅÎØÛÅ 0 ÉÌÉ ÎÅ ÍÅÎØÛÅ ÄÌÉÎÙ ÓÔÒÏËÉ
- ×ÏÚ×ÒÁÝÁÅÔ ÐÕÓÔÕÀ ÓÔÒÏËÕ.
</dd>
<dt><strong><a name="string last"></a>string</strong> <strong>last</strong>
<em>string1</em> <em>string2</em></dt>
<dd>éÝÅÔ × ÓÔÒÏËÅ <em>string2</em> ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÓÉÍ×ÏÌÏ×, ×
ÔÏÞÎÏÓÔÉ ÓÏ×ÐÁÄÁÀÝÕÀ ÓÏ <em>string1</em>. åÓÌÉ ÔÁËÁÑ
ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÅÓÔØ, ×ÏÚ×ÒÁÝÁÅÔ ÉÎÄÅËÓ ÐÅÒ×ÏÊ ÂÕË×Ù ×
ÐÏÓÌÅÄÎÅÊ ÎÁÊÄÅÎÎÏÊ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔÉ. ÷ ÐÒÏÔÉ×ÎÏÍ ÓÌÕÞÁÅ
×ÏÚ×ÒÁÝÁÅÔ -1.
</dd>
<dt><strong><a name="string length"></a>string</strong> <strong>length</strong>
<em>string</em></dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÄÅÓÑÔÉÞÎÕÀ ÓÔÒÏËÕ, ÓÏÄÅÒÖÁÝÕÀ ÞÉÓÌÏ ÓÉÍ×ÏÌÏ× ×
ÓÔÒÏËÅ.
</dd>
<dt><strong><a name="string match"></a>string</strong> <strong>match</strong>
<em>pattern</em> <em>string</em></dt>
<dd><p>ðÒÏ×ÅÒÑÅÔ, ÓÏÏÔ×ÅÔÓÔ×ÕÅÔ ÌÉ ÓÔÒÏËÁ ÏÂÒÁÚÃÕ. ÷ÏÚ×ÒÁÝÁÅÔ
1, ÅÓÌÉ ÓÏÏÔ×ÅÔÓÔ×ÕÅÔ, É 0 - × ÐÒÏÔÉ×ÎÏÍ
ÓÌÕÞÁÅ. óÏÏÔ×ÅÔÓÔ×ÉÅ ÐÒÏ×ÅÒÑÅÔÓÑ ÐÒÉÍÅÒÎÏ ÔÁË ÖÅ, ËÁË ×
C-shell. óÔÒÏËÁ ÓÏÏÔ×ÅÔÓÔ×ÕÅÔ ÛÁÂÌÏÎÕ, ÅÓÌÉ ÏÎÉ ÓÏ×ÐÁÄÁÀÔ
ÐÏÓÉÍ×ÏÌØÎÏ, ÚÁ ÉÓËÌÀÞÅÎÉÅÍ ÐÅÒÅÞÉÓÌÅÎÎÙÈ ÎÉÖÅ ÓÐÅÃÉÁÌØÎÙÈ
ÓÌÕÞÁÅ×:</p>
<table>
<tbody>
<tr>
<td>*</td>
<td>õÄÏ×ÌÅÔ×ÏÒÑÅÔ ÌÀÂÏÊ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔÉ ÉÚ ÎÕÌÑ
ÉÌÉ ÂÏÌØÛÅ ÓÉÍ×ÏÌÏ×;</td>
</tr>
<tr>
<td>?</td>
<td>õÄÏ×ÌÅÔ×ÏÒÑÅÔ ÌÀÂÏÍÕ ÓÉÍ×ÏÌÕ;</td>
</tr>
<tr>
<td><strong>[<em>chars</em>]</strong></td>
<td> õÄÏ×ÌÅÔ×ÏÒÑÅÔ ÌÀÂÏÍÕ ÓÉÍ×ÏÌÕ ÉÚ <em>chars</em>. åÓÌÉ
<em>chars</em> ×ËÌÀÞÁÅÔ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÓÉÍ×ÏÌÏ× ÔÉÐÁ
<em>a-b</em>, ÔÏ ÕÄÏ×ÌÅÔ×ÏÒÑÅÔ ×ÓÅÍ ÓÉÍ×ÏÌÁÍ ÏÔ <em>a</em>
ÄÏ <em>b</em> (×ËÌÀÞÉÔÅÌØÎÏ).</td>
</tr>
<tr>
<td>\x</td>
<td>õÄÏ×ÌÅÔ×ÏÒÑÅÔ ÓÉÍ×ÏÌÕ x. ïÂÅÓÐÅÞÉ×ÁÅÔ ×ÏÚÍÏÖÎÏÓÔØ
ÉÚÂÅÖÁÔØ × ÛÁÂÌÏÎÁÈ ÓÐÅÃÉÁÌØÎÏÇÏ ÓÍÙÓÌÁ ÓÉÍ×ÏÌÏ× *, ?,
[, ], \.</td>
</tr>
</tbody>
</table>
</dd>
<dt><strong><a name="string range"></a>string</strong> <strong>range</strong> <em>string</em>
<em>first</em> <em>last</em></dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÐÏÄÓÔÒÏËÕ ÓÔÒÏËÉ <em>string</em>, ÎÁÞÉÎÁÑ Ó ÓÉÍ×ÏÌÁ
Ó ÉÎÄÅËÓÏÍ <em>first</em> É ËÏÎÞÁÑ ÓÉÍ×ÏÌÏÍ Ó ÉÎÄÅËÓÏÍ
<em>last</em>. éÎÄÅËÓ <strong>0</strong> ÕËÁÚÙ×ÁÅÔ ÎÁ ÐÅÒ×ÙÊ ÓÉÍ×ÏÌ
ÓÔÒÏËÉ. éÎÄÅËÓ <strong>end</strong> (ÉÌÉ ÌÀÂÏÅ ÅÇÏ ÓÏËÒÁÝÅÎÉÅ) ÕËÁÚÙ×ÁÅÔ
ÎÁ ÐÏÓÌÅÄÎÉÊ ÓÉÍ×ÏÌ ÓÔÒÏËÉ. åÓÌÉ ÚÎÁÞÅÎÉÅ <em>first</em> ÍÅÎØÛÅ
<strong>0</strong>, ÉÓÐÏÌØÚÕÅÔÓÑ ÚÎÁÞÅÎÉÅ <strong>0</strong>. åÓÌÉ <em>last</em>
ÂÏÌØÛÅ ÚÎÁÞÅÎÉÑ ÉÎÄÅËÓÁ ÐÏÓÌÅÄÎÅÇÏ ÓÉÍ×ÏÌÁ × ÓÔÒÏËÅ,
ÉÓÐÏÌØÚÕÅÔÓÑ ÚÎÁÞÅÎÉÅ <strong>end</strong>. åÓÌÉ <em>first</em> ÂÏÌØÛÅ,
ÞÅÍ <em>last</em>, ËÏÍÁÎÄÁ ×ÏÚ×ÒÁÝÁÅÔ ÐÕÓÔÕÀ ÓÔÒÏËÕ.
</dd>
<dt><strong><a name="string tolower"></a>string</strong> <strong>tolower</strong>
<em>string</em></dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÓÔÒÏËÕ, ÔÏÖÄÅÓÔ×ÅÎÎÕÀ <em>string</em>, ÚÁ
ÉÓËÌÀÞÅÎÉÅÍ ÔÏÇÏ, ÞÔÏ ×ÓÅ ÓÉÍ×ÏÌÙ ×ÅÒÈÎÅÇÏ ÒÅÇÉÓÔÒÁ × ÎÅÊ
ÐÅÒÅ×ÅÄÅÎÙ × ÎÉÖÎÉÊ ÒÅÇÉÓÔÒ.
</dd>
<dt><strong><a name="string toupper"></a>string</strong> <strong>toupper</strong>
<em>string</em></dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÓÔÒÏËÕ, ÔÏÖÄÅÓÔ×ÅÎÎÕÀ <em>string</em>, ÚÁ
ÉÓËÌÀÞÅÎÉÅÍ ÔÏÇÏ, ÞÔÏ ×ÓÅ ÓÉÍ×ÏÌÙ ÎÉÖÎÅÇÏ ÒÅÇÉÓÔÒÁ × ÎÅÊ
ÐÅÒÅ×ÅÄÅÎÙ × ×ÅÒÈÎÉÊ ÒÅÇÉÓÔÒ.
</dd>
<dt><strong>string</strong> <strong>trim</strong> <em>string</em> ?<em>chars</em>?</dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÓÔÒÏËÕ, ÔÏÖÄÅÓÔ×ÅÎÎÕÀ <em>string</em>, ÚÁ ÉÓËÌÀÞÅÎÉÅÍ
ÔÏÇÏ, ÞÔÏ ÉÚ ÎÅÅ ÕÄÁÌÅÎÙ ×ÓÅ ÎÁÞÁÌØÎÙÅ É ËÏÎÅÞÎÙÅ ÓÉÍ×ÏÌÙ,
×ÈÏÄÑÝÉÅ × <em>chars</em>. åÓÌÉ ÁÒÇÕÍÅÎÔ <em>chars</em> ÎÅ ÕËÁÚÁÎ,
ÕÄÁÌÑÀÔÓÑ ÐÒÏÂÅÌØÎÙÅ ÓÉÍ×ÏÌÙ (ÐÒÏÂÅÌÙ, ÔÁÂÕÌÑÃÉÑ, ÓÉÍ×ÏÌÙ
ÎÏ×ÏÊ ÓÔÒÏËÉ).
</dd>
<dt><strong><a name="string trimleft"></a>string</strong> <strong>trimleft</strong>
<em>string</em> ?<em>chars</em>? </dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÓÔÒÏËÕ, ÔÏÖÄÅÓÔ×ÅÎÎÕÀ <em>string</em>, ÚÁ
ÉÓËÌÀÞÅÎÉÅÍ ÔÏÇÏ, ÞÔÏ ÉÚ ÎÅÅ ÕÄÁÌÅÎÙ ×ÓÅ ÎÁÞÁÌØÎÙÅ ÓÉÍ×ÏÌÙ,
×ÈÏÄÑÝÉÅ × <em>chars</em>. åÓÌÉ ÁÒÇÕÍÅÎÔ <em>chars</em> ÎÅ ÕËÁÚÁÎ,
ÕÄÁÌÑÀÔÓÑ ÐÒÏÂÅÌØÎÙÅ ÓÉÍ×ÏÌÙ (ÐÒÏÂÅÌÙ, ÔÁÂÕÌÑÃÉÑ, ÓÉÍ×ÏÌÙ
ÎÏ×ÏÊ ÓÔÒÏËÉ).
</dd>
<dt><strong><a name="string trimleft"></a>string</strong> <strong>trimright</strong>
<em>string</em> ?<em>chars</em>? </dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÓÔÒÏËÕ, ÔÏÖÄÅÓÔ×ÅÎÎÕÀ <em>string</em>, ÚÁ
ÉÓËÌÀÞÅÎÉÅÍ ÔÏÇÏ, ÞÔÏ ÉÚ ÎÅÅ ÕÄÁÌÅÎÙ ×ÓÅ ËÏÎÅÞÎÙÅ ÓÉÍ×ÏÌÙ,
×ÈÏÄÑÝÉÅ × <em>chars</em>. åÓÌÉ ÁÒÇÕÍÅÎÔ <em>chars</em> ÎÅ
ÕËÁÚÁÎ, ÕÄÁÌÑÀÔÓÑ ÐÒÏÂÅÌØÎÙÅ ÓÉÍ×ÏÌÙ (ÐÒÏÂÅÌÙ, ÔÁÂÕÌÑÃÉÑ,
ÓÉÍ×ÏÌÙ ÎÏ×ÏÊ ÓÔÒÏËÉ).
</dd>
<dt><strong><a name="string wordend"></a>string</strong> <strong>wordend</strong>
<em>string</em> <em>index</em></dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÉÎÄÅËÓ ÓÉÍ×ÏÌÁ, ÉÄÕÝÅÇÏ ÓÒÁÚÕ ÐÏÓÌÅ ÐÏÓÌÅÄÎÅÇÏ
ÓÉÍ×ÏÌÁ × ÓÌÏ×Å, ÓÏÄÅÒÖÁÝÅÍ <em>index</em>-ÎÙÊ ÓÉÍ×ÏÌ ÓÔÒÏËÉ
<em>string</em>. óÌÏ×ÏÍ ÓÞÉÔÁÅÔÓÑ ÌÀÂÁÑ ÎÅÐÒÅÒÙ×ÎÁÑ
ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÉÚ ÂÕË×, ÃÉÆÒ É ÓÉÍ×ÏÌÁ ÐÏÄÞÅÒËÉ×ÁÎÉÑ,
ÉÌÉ ÌÀÂÏÊ ÄÒÕÇÏÊ ÏÄÉÎÏÞÎÙÊ ÓÉÍ×ÏÌ.
</dd>
<dt><strong><a name="string wordstart"></a>string</strong> <strong>wordstart</strong>
<em>string</em> <em>index</em></dt>
<dd>÷ÏÚ×ÒÁÝÁÅÔ ÉÎÄÅËÓ ÐÅÒ×ÏÇÏ ÓÉÍ×ÏÌÁ × ÓÌÏ×Å, ÓÏÄÅÒÖÁÝÅÍ
<em>index</em>-ÎÙÊ ÓÉÍ×ÏÌ ÓÔÒÏËÉ <em>string</em>. óÌÏ×ÏÍ ÓÞÉÔÁÅÔÓÑ
ÌÀÂÁÑ ÎÅÐÒÅÒÙ×ÎÁÑ ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÉÚ ÂÕË×, ÃÉÆÒ É ÓÉÍ×ÏÌÁ
ÐÏÄÞÅÒËÉ×ÁÎÉÑ, ÉÌÉ ÌÀÂÏÊ ÄÒÕÇÏÊ ÏÄÉÎÏÞÎÙÊ ÓÉÍ×ÏÌ.
</dd>
</dl>
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