select * from Table
where 1=1
${if(len(dwmc)=0,"","and DWMC like"+ "%" + dwmc + "%" )}
这个sql语句一直报错,有问题
select * from Table where 1=1 ${if(len(dwmc)=0,""," and DWMC like '%"+dwmc+"%'" )}
select * from Table where 1=1 ${if(len(dwmc)=0,"","and DWMC like '%" + dwmc + "%'" )}