mybatis less than or equal to the wording

The first written (1): 

original symbols <<=>> = ' " 
replaces the symbol & lt; & lt; = & gt; & gt; = & amp; & apos; & quot; 

example: sql follows: 
create_date_time & gt; = # {the startTime} and create_date_time & lt; = # { endTime} 

The second writing (2): 

not less than 
<[=]> CDATA [] !> 

less 
<[CDATA [<=]] !> 

not equal to 
<[CDATA [=!! ]]> 

For example: sql follows: 
! create_date_time <[CDATA [> =]]> # {} and the startTime create_date_time <[CDATA [<=]]> # endTime} {!