# And $ in mybatis,

# And $ in mybatis,

#:

I think the input data is not necessarily a string. What if it is a boolean type ?, Is it "true ?, I think # {} is actually the value of the variable you saved, that is, what value you passed in, and what value it will resolve to you, the premise is that it can be parsed, but if it is a string type, it will add "" to you "".

 

$:

It will not add a symbol to the value you passed in. If the string is passed in, the value you passed in will still be displayed, and no double quotation marks will be added. In addition, the value of $ must be used for dynamic sorting.