diff --git a/app.go b/app.go
index 8eacc36..9bb91a5 100644
--- a/app.go
+++ b/app.go
@@ -64,6 +64,8 @@ func (this *app) init(userApp UserApp) {
 	_sysLog.init()
 	_tgLog = new(TGLog_)
 	_tgLog.init()
+	_pageQuery = new (pageQuery)
+	_pageQuery.init()
 	_httpCliMgr = new(HttpCliMgr)
 	_httpCliMgr.init()
 	{
@@ -90,6 +92,7 @@ func (this *app) init(userApp UserApp) {
 func (this *app) unInit() {
 	this.chGoLoopTimerExit <- 1
 	_httpCliMgr.unInit()
+	_pageQuery.unInit()
 	_timer.unInit()
 	_timer = nil
 	this.userApp.UnInit()
diff --git a/pagequery.go b/pagequery.go
index 7759a6d..55b7f46 100644
--- a/pagequery.go
+++ b/pagequery.go
@@ -30,6 +30,7 @@ type PageQueryFilter interface {
 	And() PageQueryFilter
 	Or() PageQueryFilter
 	Not() PageQueryFilter
+	GetLinkOp() LinkOp
 	GenSql() string
 }
 
@@ -45,11 +46,11 @@ type PageQueryOne struct {
 type PageQueryComp struct {
 	linkOp LinkOp
 	not bool
-	subFilters []*PageQueryOne
+	subFilters []PageQueryFilter
 }
 
 type PageQueryParam struct {
-	Filter []PageQueryFilter
+	Filter *PageQueryComp
 	OrderBy string
 }
 
@@ -62,7 +63,13 @@ func (this *PageQueryParam) genSql() string {
 	return sql
 }
 
-func (this *pageQuery) Like(fieldName string, val string) *PageQueryOne {
+func (this *pageQuery) init() {
+}
+
+func (this *pageQuery) unInit() {
+}
+
+func (this *pageQuery) Like(fieldName string, val string) PageQueryFilter {
 	f := &PageQueryOne{
 		cond: QC_LIKE,
 		fieldName: fieldName,
@@ -70,7 +77,7 @@ func (this *pageQuery) Like(fieldName string, val string) *PageQueryOne {
 	return f
 }
 
-func (this *pageQuery) EQ(fieldName string, val string) *PageQueryOne {
+func (this *pageQuery) EQ(fieldName string, val string) PageQueryFilter {
 	f := &PageQueryOne{
 		cond: QC_EQ,
 		fieldName: fieldName,
@@ -78,7 +85,7 @@ func (this *pageQuery) EQ(fieldName string, val string) *PageQueryOne {
 	return f
 }
 
-func (this *pageQuery) LT(fieldName string, val string) *PageQueryOne {
+func (this *pageQuery) LT(fieldName string, val string) PageQueryFilter {
 	f := &PageQueryOne{
 		cond: QC_LT,
 		fieldName: fieldName,
@@ -86,7 +93,7 @@ func (this *pageQuery) LT(fieldName string, val string) *PageQueryOne {
 	return f
 }
 
-func (this *pageQuery) LE(fieldName string, val string) *PageQueryOne {
+func (this *pageQuery) LE(fieldName string, val string) PageQueryFilter {
 	f := &PageQueryOne{
 		cond: QC_LE,
 		fieldName: fieldName,
@@ -94,7 +101,7 @@ func (this *pageQuery) LE(fieldName string, val string) *PageQueryOne {
 	return f
 }
 
-func (this *pageQuery) GT(fieldName string, val string) *PageQueryOne {
+func (this *pageQuery) GT(fieldName string, val string) PageQueryFilter {
 	f := &PageQueryOne{
 		cond: QC_GT,
 		fieldName: fieldName,
@@ -102,7 +109,7 @@ func (this *pageQuery) GT(fieldName string, val string) *PageQueryOne {
 	return f
 }
 
-func (this *pageQuery) GE(fieldName string, val string) *PageQueryOne {
+func (this *pageQuery) GE(fieldName string, val string) PageQueryFilter {
 	f := &PageQueryOne{
 		cond: QC_GE,
 		fieldName: fieldName,
@@ -110,7 +117,7 @@ func (this *pageQuery) GE(fieldName string, val string) *PageQueryOne {
 	return f
 }
 
-func (this *pageQuery) Custom(fieldName string, val string) *PageQueryOne {
+func (this *pageQuery) Custom(fieldName string, val string) PageQueryFilter {
 	f := &PageQueryOne{
 		cond: QC_CUSTOM,
 		fieldName: fieldName,
@@ -118,13 +125,13 @@ func (this *pageQuery) Custom(fieldName string, val string) *PageQueryOne {
 	return f
 }
 
-func (this *pageQuery) Comp(subFilters []*PageQueryOne) *PageQueryComp {
+func (this *pageQuery) Comp(subFilters ...PageQueryFilter) PageQueryFilter {
 	f := &PageQueryComp{
 		subFilters: subFilters}
 	return f
 }
 
-func (this *PageQueryOne) IgnoreEmpy() *PageQueryOne {
+func (this *PageQueryOne) IgnoreEmpy() PageQueryFilter {
 	this.ignoreEmpty = true
 	return this
 }
@@ -145,6 +152,10 @@ func (this *PageQueryOne) Not() PageQueryFilter {
 	return this
 }
 
+func (this *PageQueryOne) GetLinkOp() LinkOp {
+	return this.linkOp
+}
+
 func (this *PageQueryOne) GenSql() string {
 	if this.ignoreEmpty && this.val == "" {
 		return " "
@@ -169,11 +180,11 @@ func (this *PageQueryOne) GenSql() string {
 		panic("page query cond error")
 	}
 	if this.not {
-		sql = fmt.Sprintf( "NOT (%s) ", sql)
+		sql = fmt.Sprintf(" NOT (%s) ", sql)
 	}
 	switch this.linkOp {
 	case LK_AND:
-		sql = fmt.Sprintf( "AND (%s) ", sql)
+		sql = fmt.Sprintf(" AND (%s) ", sql)
 	case LK_OR:
 		sql = fmt.Sprintf(" OR (%s) ", sql)
 	default:
@@ -197,20 +208,31 @@ func (this *PageQueryComp) Not() PageQueryFilter {
 	return this
 }
 
+func (this *PageQueryComp) GetLinkOp() LinkOp {
+	return this.linkOp
+}
+
 func (this *PageQueryComp) GenSql() string {
 	if len(this.subFilters) <= 0 {
 		return " "
 	}
-	sql := ""
-	for _, filter := range this.subFilters {
+	sql := " "
+	for index, filter := range this.subFilters {
+		if index == 0 {
+			if filter.GetLinkOp() == LK_AND {
+				sql = " 1=1 "
+			} else {
+				sql = " 1<>1 "
+			}
+		}
 		sql += filter.GenSql()
 	}
 	if this.not {
-		sql = fmt.Sprintf( "NOT (%s) ", sql)
+		sql = fmt.Sprintf(" NOT (%s) ", sql)
 	}
 	switch this.linkOp {
 	case LK_AND:
-		sql = fmt.Sprintf( "AND (%s) ", sql)
+		sql = fmt.Sprintf(" AND (%s) ", sql)
 	case LK_OR:
 		sql = fmt.Sprintf(" OR (%s) ", sql)
 	default: