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ËùÓеıȽ϶¼ÔÚ´®ÉϽøÐÐ: <tt>string1 rel string2</tt>.
¿ÉÒÔÀûÓà <tt>and</tt> Óë <tt>or</tt> °Ñ±È½Ï½áºÏÆðÀ´.
»¹¿ÉÒÔÀûÓÃÀ¨ºÅÒÔ¹¹³É¸´ÔӵıȽÏʽ.
:ÓÐЧµÄ¹Øϵ
:¹Øϵ,Ìõ¼þ
:==
string1 == string2 string1 = string2
true(Õæ), Èô <tt> string1</tt> Óë <tt>string2</tt> ÍêÈ«Ïàͬ.
:!=
string1 != string2 string1 <> string2
true(Õæ), Èô <tt> string1</tt> Óë <tt>string2</tt> ²»Ïàͬ.
:<
string1 < string2
true(Õæ), Èç¹ûÁ½¸ö´®µÄÊýÖµ <tt>string1</tt> < <tt>string2</tt>.
:<=
string1 <= string2
true(Õæ), Èç¹ûÁ½¸ö´®µÄÊýÖµ <tt>string1</tt> $m_le <tt>string2</tt>.
:>
string1 > string2
true(Õæ), Èç¹ûÁ½¸ö´®µÄÊýÖµ <tt>string1</tt> > <tt>string2</tt>.
:>=
string1 >= string2
true(Õæ), Èç¹ûÁ½¸ö´®µÄÊýÖµ <tt>string1</tt> $m_ge <tt>string2</tt>.
:isin
string1 isin string2
true(Õæ), Èô <tt>string1</tt> ÊÇ <tt>string2</tt> µÄ×Ó´®.
:notin
string1 notin string2
true(Õæ), Èô <tt>string1</tt> ²»ÊÇ <tt>string2</tt> µÄ×Ó´®.
:iswordof
string1 iswordof string2
true(Õæ), Èô <tt>string1</tt> ÊÇ <tt>string2</tt> µÄÒ»¸ö´Ê.
:notwordof
string1 notwordof string2
true(Õæ), Èô <tt>string1</tt> ²»ÊÇ <tt>string2</tt> µÄÒ»¸ö´Ê.
:isvarof
string1 isvarof string2
true(Õæ), Èô <tt>string1</tt> ÊDZí´ïʽ <tt>string2</tt> µÄÒ»¸ö(Êýѧ)±äÁ¿.
:notvarof
string1 notvarof string2
true(Õæ), Èô <tt>string1</tt> ²»ÊDZí´ïʽ <tt>string2</tt> µÄÒ»¸ö(Êýѧ)±äÁ¿.
:isvariableof
string1 isvariableof string2
true(Õæ), Èô <tt> string1</tt> ÊDZí´ïʽ <tt>string2</tt> µÄÒ»¸ö(Êýѧ)±äÁ¿.
:notvariableof
string1 notvariableof string2
true(Õæ), Èô <tt> string1</tt> ²»ÊDZí´ïʽ <tt>string2</tt> µÄÒ»¸ö(Êýѧ)±äÁ¿.
:isitemof
string1 isitemof string2
true(Õæ), Èô <tt> string1</tt> ÊDZí <tt>string2</tt> µÄÒ»Ïî.
:notitemof
string1 notitemof string2
true(Õæ), Èô <tt> string1</tt> ²»ÊDZí <tt>string2</tt> µÄÒ»Ïî.
:islineof
string1 islineof string2
true(Õæ), Èô <tt> string1</tt> ÊDZí <tt>string2</tt> µÄÒ»ÐÐ.
:notlineof
string1 notlineof string2
true(Õæ), Èô <tt> string1</tt> ²»ÊDZí <tt>string2</tt> µÄÒ»ÐÐ.
:issamecase
string1 issamecase string2
true(Õæ), Èô <tt> string1</tt> Óë <tt>string2</tt> ÓÐÏàͬµÄÎÄ×Ö, ±È½Ïʱ²»¿¼ÂǶàÓàµÄ¿Õ¸ñ, µ«ÊÇÇø±ð´óСд×Öĸ.
:notsamecase
string1 notsamecase string2
true(Õæ), Èô <tt> string1</tt> Óë <tt>string2</tt> Óв»ÏàͬµÄÎÄ×Ö, ±È½Ïʱ²»¿¼ÂǶàÓàµÄ¿Õ¸ñ, µ«ÊÇÇø±ð´óСд×Öĸ.
:issametext
string1 issametext string2
true(Õæ), Èô <tt> string1</tt> Óë <tt>string2</tt> ÓÐÏàͬµÄÎÄ×Ö, ±È½Ïʱ²»¿¼ÂǶàÓàµÄ¿Õ¸ñ¡¢´óСд×Öĸ¼°ÓÐÖØÒôºÅµÄ×Öĸ.
:notsametext
string1 notsametext string2
true(Õæ), Èô <tt> string1</tt> Óë <tt>string2</tt> Óв»ÏàͬµÄÎÄ×Ö, ±È½Ïʱ²»¿¼ÂǶàÓàµÄ¿Õ¸ñ¡¢´óСд×Öĸ¼°ÓÐÖØÒôºÅµÄ×Öĸ.