еıȽ϶ڴϽ: <span class="tt">string1 rel string2</span>.
 <span class="tt">and</span>  <span class="tt">or</span> ѱȽϽ.
ԹɸӵıȽʽ.

:ЧĹϵ
:ϵ,

:==
string1  ==  string2  string1  =  string2
true(),  <span class="tt"> string1</span>  <span class="tt">string2</span> ȫͬ.
:!=
string1  !=  string2  string1  &lt;&gt;  string2
true(),  <span class="tt"> string1</span>  <span class="tt">string2</span> ͬ.
:<
string1  <  string2
true(), ֵ <span class="tt">string1</span> < <span class="tt">string2</span>.
:<=
string1  <=  string2
true(), ֵ <span class="tt">string1</span> $m_le <span class="tt">string2</span>.
:>
string1  >  string2
true(), ֵ <span class="tt">string1</span> > <span class="tt">string2</span>.
:>=
string1  >=  string2
true(), ֵ <span class="tt">string1</span> $m_ge <span class="tt">string2</span>.
:isin
string1  isin  string2
true(),  <span class="tt">string1</span>  <span class="tt">string2</span> Ӵ.
:notin
string1  notin  string2
true(),  <span class="tt">string1</span>  <span class="tt">string2</span> Ӵ.
:iswordof
string1  iswordof  string2
true(),  <span class="tt">string1</span>  <span class="tt">string2</span> һ.
:notwordof
string1  notwordof  string2
true(),  <span class="tt">string1</span>  <span class="tt">string2</span> һ.
:isvarof
string1  isvarof  string2
true(),  <span class="tt">string1</span> Ǳʽ <span class="tt">string2</span> һ(ѧ).
:notvarof
string1  notvarof  string2
true(),  <span class="tt">string1</span> Ǳʽ <span class="tt">string2</span> һ(ѧ).
:isvariableof
string1  isvariableof  string2
true(),  <span class="tt"> string1</span> Ǳʽ <span class="tt">string2</span> һ(ѧ).
:notvariableof
string1  notvariableof  string2
true(),  <span class="tt"> string1</span> Ǳʽ <span class="tt">string2</span> һ(ѧ).
:isitemof
string1  isitemof  string2
true(),  <span class="tt"> string1</span> Ǳ <span class="tt">string2</span> һ.
:notitemof
string1  notitemof  string2
true(),  <span class="tt"> string1</span> Ǳ <span class="tt">string2</span> һ.
:islineof
string1  islineof  string2
true(),  <span class="tt"> string1</span> Ǳ <span class="tt">string2</span> һ.
:notlineof
string1  notlineof  string2
true(),  <span class="tt"> string1</span> Ǳ <span class="tt">string2</span> һ.
:issamecase
string1  issamecase  string2
true(),  <span class="tt"> string1</span>  <span class="tt">string2</span> ͬ, ȽʱǶĿո, Сдĸ.
:notsamecase
string1  notsamecase  string2
true(),  <span class="tt"> string1</span>  <span class="tt">string2</span> вͬ, ȽʱǶĿո, Сдĸ.
:issametext
string1  issametext  string2
true(),  <span class="tt"> string1</span>  <span class="tt">string2</span> ͬ, ȽʱǶĿո񡢴Сдĸŵĸ.
:notsametext
string1  notsametext  string2
true(),  <span class="tt"> string1</span>  <span class="tt">string2</span> вͬ, ȽʱǶĿո񡢴Сдĸŵĸ.
