MySql的like语句中的通配符：百分号、下划线和escape %代表任意多个字符 Sql代码 http://blog.csdn.net/yc7369/ select * from user where username like '%huxiao'; select * from user where username like 'huxiao%'; select * from user where username like '%huxiao%'; _代表一个字符 Sql代码 select * from user where username like '_'; select * from user where username like 'huxia_'; select * from user where username like 'h_xiao'; 如果我就真的要查%或者_，怎么办呢？使用escape，转义字符后面的%或_就不作为通配符了，注意前面没有转义字符的%和_仍然起通配符作用 Sql代码 select username from gg_user where username like '%xiao/_%' escape '/'; select username from gg_user where username like '%xiao/%%' escape '/';