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<h1 align=center>QString类参考</h1>
<p>QString类提供了一个Unicode文本和经典的C以零结尾的字符数组的抽象。
<a href="#details">详情请见……</a>
<p><tt>#include <<a href="qstring-h.html">qstring.h</a>></tt>
<p><a href="qstring-members.html">所有成员函数的列表。</a>
<h2>公有成员</h2>
<ul>
<li><div class=fn><a href="#QString"><b>QString</b></a> ()</div></li>
<li><div class=fn><a href="#QString-2"><b>QString</b></a> ( QChar ch )</div></li>
<li><div class=fn><a href="#QString-3"><b>QString</b></a> ( const QString & s )</div></li>
<li><div class=fn><a href="#QString-4"><b>QString</b></a> ( const QByteArray & ba )</div></li>
<li><div class=fn><a href="#QString-5"><b>QString</b></a> ( const QChar * unicode, uint length )</div></li>
<li><div class=fn><a href="#QString-6"><b>QString</b></a> ( const char * str )</div></li>
<li><div class=fn><a href="#~QString"><b>~QString</b></a> ()</div></li>
<li><div class=fn>QString & <a href="#operator-eq-2"><b>operator=</b></a> ( const QString & s )</div></li>
<li><div class=fn>QString & <a href="#operator-eq-3"><b>operator=</b></a> ( const char * str )</div></li>
<li><div class=fn>QString & <a href="#operator-eq-4"><b>operator=</b></a> ( const QCString & cs )</div></li>
<li><div class=fn>QString & <a href="#operator-eq"><b>operator=</b></a> ( QChar c )</div></li>
<li><div class=fn>QString & <a href="#operator-eq-5"><b>operator=</b></a> ( char c )</div></li>
<li><div class=fn>bool <a href="#isNull"><b>isNull</b></a> () const</div></li>
<li><div class=fn>bool <a href="#isEmpty"><b>isEmpty</b></a> () const</div></li>
<li><div class=fn>uint <a href="#length"><b>length</b></a> () const</div></li>
<li><div class=fn>void <a href="#truncate"><b>truncate</b></a> ( uint newLen )</div></li>
<li><div class=fn>QString & <a href="#fill"><b>fill</b></a> ( QChar c, int len = -1 )</div></li>
<li><div class=fn>QString copy () const <em>(obsolete)</em></div></li>
<li><div class=fn>QString <a href="#arg-2"><b>arg</b></a> ( long a, int fieldwidth = 0, int base = 10 ) const</div></li>
<li><div class=fn>QString <a href="#arg-3"><b>arg</b></a> ( ulong a, int fieldwidth = 0, int base = 10 ) const</div></li>
<li><div class=fn>QString <a href="#arg-4"><b>arg</b></a> ( int a, int fieldwidth = 0, int base = 10 ) const</div></li>
<li><div class=fn>QString <a href="#arg-5"><b>arg</b></a> ( uint a, int fieldwidth = 0, int base = 10 ) const</div></li>
<li><div class=fn>QString <a href="#arg-6"><b>arg</b></a> ( short a, int fieldwidth = 0, int base = 10 ) const</div></li>
<li><div class=fn>QString <a href="#arg-7"><b>arg</b></a> ( ushort a, int fieldwidth = 0, int base = 10 ) const</div></li>
<li><div class=fn>QString <a href="#arg-8"><b>arg</b></a> ( char a, int fieldwidth = 0 ) const</div></li>
<li><div class=fn>QString <a href="#arg-9"><b>arg</b></a> ( QChar a, int fieldwidth = 0 ) const</div></li>
<li><div class=fn>QString <a href="#arg"><b>arg</b></a> ( const QString & a, int fieldwidth = 0 ) const</div></li>
<li><div class=fn>QString <a href="#arg-a"><b>arg</b></a> ( double a, int fieldwidth = 0, char fmt = 'g', int prec = -1 ) const</div></li>
<li><div class=fn>QString & <a href="#sprintf"><b>sprintf</b></a> ( const char * cformat, ... )</div></li>
<li><div class=fn>int <a href="#find-2"><b>find</b></a> ( QChar c, int index = 0, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#find-3"><b>find</b></a> ( char c, int index = 0, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#find-4"><b>find</b></a> ( const QString & str, int index = 0, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#find"><b>find</b></a> ( const QRegExp & rx, int index = 0 ) const</div></li>
<li><div class=fn>int <a href="#find-5"><b>find</b></a> ( const char * str, int index = 0 ) const</div></li>
<li><div class=fn>int <a href="#findRev-2"><b>findRev</b></a> ( QChar c, int index = -1, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#findRev-3"><b>findRev</b></a> ( char c, int index = -1, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#findRev-4"><b>findRev</b></a> ( const QString & str, int index = -1, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#findRev-5"><b>findRev</b></a> ( const QRegExp & rx, int index = -1 ) const</div></li>
<li><div class=fn>int <a href="#findRev"><b>findRev</b></a> ( const char * str, int index = -1 ) const</div></li>
<li><div class=fn>int <a href="#contains"><b>contains</b></a> ( QChar c, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#contains-2"><b>contains</b></a> ( char c, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#contains-3"><b>contains</b></a> ( const char * str, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#contains-4"><b>contains</b></a> ( const QString & str, bool cs = TRUE ) const</div></li>
<li><div class=fn>int <a href="#contains-5"><b>contains</b></a> ( const QRegExp & rx ) const</div></li>
<li><div class=fn>enum <a href="#SectionFlags-enum"><b>SectionFlags</b></a> { SectionDefault = 0x00, SectionSkipEmpty = 0x01, SectionIncludeLeadingSep = 0x02, SectionIncludeTrailingSep = 0x04, SectionCaseInsensitiveSeps = 0x08 }</div></li>
<li><div class=fn>QString <a href="#section"><b>section</b></a> ( QChar sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const</div></li>
<li><div class=fn>QString <a href="#section-2"><b>section</b></a> ( char sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const</div></li>
<li><div class=fn>QString <a href="#section-3"><b>section</b></a> ( const char * sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const</div></li>
<li><div class=fn>QString <a href="#section-4"><b>section</b></a> ( const QString & sep, int start, int end = 0xffffffff, int flags = SectionDefault ) const</div></li>
<li><div class=fn>QString <a href="#section-5"><b>section</b></a> ( const QRegExp & reg, int start, int end = 0xffffffff, int flags = SectionDefault ) const</div></li>
<li><div class=fn>QString <a href="#left"><b>left</b></a> ( uint len ) const</div></li>
<li><div class=fn>QString <a href="#right"><b>right</b></a> ( uint len ) const</div></li>
<li><div class=fn>QString <a href="#mid"><b>mid</b></a> ( uint index, uint len = 0xffffffff ) const</div></li>
<li><div class=fn>QString <a href="#leftJustify"><b>leftJustify</b></a> ( uint width, QChar fill = ' ', bool truncate = FALSE ) const</div></li>
<li><div class=fn>QString <a href="#rightJustify"><b>rightJustify</b></a> ( uint width, QChar fill = ' ', bool truncate = FALSE ) const</div></li>
<li><div class=fn>QString <a href="#lower"><b>lower</b></a> () const</div></li>
<li><div class=fn>QString <a href="#upper"><b>upper</b></a> () const</div></li>
<li><div class=fn>QString <a href="#stripWhiteSpace"><b>stripWhiteSpace</b></a> () const</div></li>
<li><div class=fn>QString <a href="#simplifyWhiteSpace"><b>simplifyWhiteSpace</b></a> () const</div></li>
<li><div class=fn>QString & <a href="#insert"><b>insert</b></a> ( uint index, const QString & s )</div></li>
<li><div class=fn>QString & <a href="#insert-2"><b>insert</b></a> ( uint index, const QChar * s, uint len )</div></li>
<li><div class=fn>QString & <a href="#insert-3"><b>insert</b></a> ( uint index, QChar c )</div></li>
<li><div class=fn>QString & <a href="#insert-4"><b>insert</b></a> ( uint index, char c )</div></li>
<li><div class=fn>QString & <a href="#append-2"><b>append</b></a> ( char ch )</div></li>
<li><div class=fn>QString & <a href="#append-3"><b>append</b></a> ( QChar ch )</div></li>
<li><div class=fn>QString & <a href="#append"><b>append</b></a> ( const QString & str )</div></li>
<li><div class=fn>QString & <a href="#prepend-2"><b>prepend</b></a> ( char ch )</div></li>
<li><div class=fn>QString & <a href="#prepend-3"><b>prepend</b></a> ( QChar ch )</div></li>
<li><div class=fn>QString & <a href="#prepend"><b>prepend</b></a> ( const QString & s )</div></li>
<li><div class=fn>QString & <a href="#remove"><b>remove</b></a> ( uint index, uint len )</div></li>
<li><div class=fn>QString & <a href="#replace"><b>replace</b></a> ( uint index, uint len, const QString & s )</div></li>
<li><div class=fn>QString & <a href="#replace-2"><b>replace</b></a> ( uint index, uint len, const QChar * s, uint slen )</div></li>
<li><div class=fn>QString & <a href="#replace-3"><b>replace</b></a> ( const QRegExp & rx, const QString & str )</div></li>
<li><div class=fn>short <a href="#toShort"><b>toShort</b></a> ( bool * ok = 0, int base = 10 ) const</div></li>
<li><div class=fn>ushort <a href="#toUShort"><b>toUShort</b></a> ( bool * ok = 0, int base = 10 ) const</div></li>
<li><div class=fn>int <a href="#toInt"><b>toInt</b></a> ( bool * ok = 0, int base = 10 ) const</div></li>
<li><div class=fn>uint <a href="#toUInt"><b>toUInt</b></a> ( bool * ok = 0, int base = 10 ) const</div></li>
<li><div class=fn>long <a href="#toLong"><b>toLong</b></a> ( bool * ok = 0, int base = 10 ) const</div></li>
<li><div class=fn>ulong <a href="#toULong"><b>toULong</b></a> ( bool * ok = 0, int base = 10 ) const</div></li>
<li><div class=fn>float <a href="#toFloat"><b>toFloat</b></a> ( bool * ok = 0 ) const</div></li>
<li><div class=fn>double <a href="#toDouble"><b>toDouble</b></a> ( bool * ok = 0 ) const</div></li>
<li><div class=fn>QString & <a href="#setNum-2"><b>setNum</b></a> ( short n, int base = 10 )</div></li>
<li><div class=fn>QString & <a href="#setNum-3"><b>setNum</b></a> ( ushort n, int base = 10 )</div></li>
<li><div class=fn>QString & <a href="#setNum-4"><b>setNum</b></a> ( int n, int base = 10 )</div></li>
<li><div class=fn>QString & <a href="#setNum-5"><b>setNum</b></a> ( uint n, int base = 10 )</div></li>
<li><div class=fn>QString & <a href="#setNum"><b>setNum</b></a> ( long n, int base = 10 )</div></li>
<li><div class=fn>QString & <a href="#setNum-6"><b>setNum</b></a> ( ulong n, int base = 10 )</div></li>
<li><div class=fn>QString & <a href="#setNum-7"><b>setNum</b></a> ( float n, char f = 'g', int prec = 6 )</div></li>
<li><div class=fn>QString & <a href="#setNum-8"><b>setNum</b></a> ( double n, char f = 'g', int prec = 6 )</div></li>
<li><div class=fn>void setExpand ( uint index, QChar c ) <em>(obsolete)</em></div></li>
<li><div class=fn>QString & <a href="#operator+-eq"><b>operator+=</b></a> ( const QString & str )</div></li>
<li><div class=fn>QString & <a href="#operator+-eq-2"><b>operator+=</b></a> ( QChar c )</div></li>
<li><div class=fn>QString & <a href="#operator+-eq-3"><b>operator+=</b></a> ( char c )</div></li>
<li><div class=fn>QChar <a href="#at"><b>at</b></a> ( uint i ) const</div></li>
<li><div class=fn>QChar <a href="#operator[]"><b>operator[]</b></a> ( int i ) const</div></li>
<li><div class=fn>QCharRef <a href="#at-2"><b>at</b></a> ( uint i )</div></li>
<li><div class=fn>QCharRef <a href="#operator[]-2"><b>operator[]</b></a> ( int i )</div></li>
<li><div class=fn>QChar <a href="#constref"><b>constref</b></a> ( uint i ) const</div></li>
<li><div class=fn>QChar & <a href="#ref"><b>ref</b></a> ( uint i )</div></li>
<li><div class=fn>const QChar * <a href="#unicode"><b>unicode</b></a> () const</div></li>
<li><div class=fn>const char * ascii () const <em>(obsolete)</em></div></li>
<li><div class=fn>const char * <a href="#latin1"><b>latin1</b></a> () const</div></li>
<li><div class=fn>QCString <a href="#utf8"><b>utf8</b></a> () const</div></li>
<li><div class=fn>QCString <a href="#local8Bit"><b>local8Bit</b></a> () const</div></li>
<li><div class=fn>bool <a href="#operator!"><b>operator!</b></a> () const</div></li>
<li><div class=fn><a href="#operator-const-char-*"><b>operator const char *</b></a> () const</div></li>
<li><div class=fn>QString & <a href="#setUnicode"><b>setUnicode</b></a> ( const QChar * unicode, uint len )</div></li>
<li><div class=fn>QString & <a href="#setUnicodeCodes"><b>setUnicodeCodes</b></a> ( const ushort * unicode_as_ushorts, uint len )</div></li>
<li><div class=fn>QString & <a href="#setLatin1"><b>setLatin1</b></a> ( const char * str, int len = -1 )</div></li>
<li><div class=fn>int <a href="#compare-2"><b>compare</b></a> ( const QString & s ) const</div></li>
<li><div class=fn>int <a href="#localeAwareCompare-2"><b>localeAwareCompare</b></a> ( const QString & s ) const</div></li>
<li><div class=fn>void <a href="#compose"><b>compose</b></a> ()</div></li>
<li><div class=fn>const char * data () const <em>(obsolete)</em></div></li>
<li><div class=fn>bool <a href="#startsWith"><b>startsWith</b></a> ( const QString & s ) const</div></li>
<li><div class=fn>bool <a href="#endsWith"><b>endsWith</b></a> ( const QString & s ) const</div></li>
<li><div class=fn>void <a href="#setLength"><b>setLength</b></a> ( uint newLen )</div></li>
</ul>
<h2>静态公有成员</h2>
<ul>
<li><div class=fn>QString <a href="#number"><b>number</b></a> ( long n, int base = 10 )</div></li>
<li><div class=fn>QString <a href="#number-2"><b>number</b></a> ( ulong n, int base = 10 )</div></li>
<li><div class=fn>QString <a href="#number-3"><b>number</b></a> ( int n, int base = 10 )</div></li>
<li><div class=fn>QString <a href="#number-4"><b>number</b></a> ( uint n, int base = 10 )</div></li>
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