src/org/nutz/dao/Cnd.java
public Cnd orEX(String name, String op, Object value) {
        return or(Cnd.expEX(name, op, value));
    }
public Cnd orEX(String name, String op, Object value) {
        return or(Cnd.expEX(name, op, value));
    }
若value为null/空白字符串/空集合/空数组,则本条件不添加.
@see Cnd#or(String, String, Object)