diff --git a/cmd/start-concurrent-engine.go b/cmd/start-concurrent-engine.go
index 7d924ba..0370599 100644
--- a/cmd/start-concurrent-engine.go
+++ b/cmd/start-concurrent-engine.go
@@ -4,31 +4,37 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"sync"
+
 	"simple-golang-crawler/engine"
 	"simple-golang-crawler/parser"
 	"simple-golang-crawler/persist"
 	"simple-golang-crawler/scheduler"
-	"sync"
+
+	"github.com/alexflint/go-arg"
 )
 
+var cmdArgs struct {
+	IdType string `arg:"-t,--type" help:"id type,support:\n\taid:\t\t下载单个视频\n\tupid\t\t下载指定up主的视频"`
+	Id     int64  `arg:"-i,--id" help:"视频或up主的id"`
+}
+
 func main() {
-	itemProcessFun := persist.GetItemProcessFun()
 	var err error
-	var wg sync.WaitGroup
-	wg.Add(1)
-	itemChan, err := itemProcessFun(&wg)
-	if err != nil {
-		panic(err)
-	}
-
 	var idType string
 	var id int64
-	var req *engine.Request
-	fmt.Println("Please enter your id type(`aid` or `upid`)")
-	fmt.Scan(&idType)
-	fmt.Println("Please enter your id")
-	fmt.Scan(&id)
+	arg.MustParse(&cmdArgs)
+	if cmdArgs.IdType == "" {
+		fmt.Println("Please enter your id type(`aid` or `upid`)")
+		fmt.Scan(&idType)
+		fmt.Println("Please enter your id")
+		fmt.Scan(&id)
+	} else {
+		idType = cmdArgs.IdType
+		id = cmdArgs.Id
+	}
 
+	var req *engine.Request
 	if idType == "aid" {
 		req = parser.GetRequestByAid(id)
 	} else if idType == "upid" {
@@ -38,6 +44,14 @@ func main() {
 		os.Exit(1)
 	}
 
+	itemProcessFun := persist.GetItemProcessFun()
+	var wg sync.WaitGroup
+	wg.Add(1)
+	itemChan, err := itemProcessFun(&wg)
+	if err != nil {
+		panic(err)
+	}
+
 	queueScheduler := scheduler.NewConcurrentScheduler()
 	conEngine := engine.NewConcurrentEngine(30, queueScheduler, itemChan)
 	log.Println("Start working.")
diff --git a/go.mod b/go.mod
index 25882a3..d78465b 100644
--- a/go.mod
+++ b/go.mod
@@ -3,15 +3,11 @@ module simple-golang-crawler
 go 1.12
 
 require (
+	github.com/alexflint/go-arg v1.4.2
 	github.com/go-cmd/cmd v1.2.0
+	github.com/stretchr/testify v1.7.0 // indirect
 	github.com/tidwall/gjson v1.5.0
 	github.com/tidwall/pretty v1.0.1 // indirect
-	golang.org/x/crypto v0.0.0-20200210222208-86ce3cb69678 // indirect
-	golang.org/x/mod v0.2.0 // indirect
 	golang.org/x/net v0.0.0-20200202094626-16171245cfb2
-	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e // indirect
-	golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5 // indirect
 	golang.org/x/text v0.3.2
-	golang.org/x/tools v0.0.0-20200211045251-2de505fc5306 // indirect
-	golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 // indirect
 )
diff --git a/go.sum b/go.sum
index 0b64f00..dd27f47 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,20 @@
+github.com/alexflint/go-arg v1.4.2 h1:lDWZAXxpAnZUq4qwb86p/3rIJJ2Li81EoMbTMujhVa0=
+github.com/alexflint/go-arg v1.4.2/go.mod h1:9iRbDxne7LcR/GSvEr7ma++GLpdIU1zrghf2y2768kM=
+github.com/alexflint/go-scalar v1.0.0 h1:NGupf1XV/Xb04wXskDFzS0KWOLH632W/EO4fAFi+A70=
+github.com/alexflint/go-scalar v1.0.0/go.mod h1:GpHzbCOZXEKMEcygYQ5n/aa4Aq84zbxjy3MxYW0gjYw=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-cmd/cmd v1.2.0 h1:Aohz0ZG0nQbvT4z55Mh+fdegX48GSAXL3cSsbYxRfvI=
 github.com/go-cmd/cmd v1.2.0/go.mod h1:XgKkd0L6sv9WcYV0FS8RfG1RJCSTVHTsLeAD2pTgHt0=
+github.com/go-test/deep v1.0.5 h1:AKODKU3pDH1RzZzm6YZu77YWtEAq6uh1rLIAQlay2qc=
 github.com/go-test/deep v1.0.5/go.mod h1:QV8Hv/iy04NyLBxAdO9njL0iVPN1S4d/A3NVv1V36o8=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/tidwall/gjson v1.5.0 h1:QCssIUI7J0RStkzIcI4A7O6P8rDA5wi5IPf70uqKSxg=
 github.com/tidwall/gjson v1.5.0/go.mod h1:P256ACg0Mn+j1RXIDXoss50DeIABTYK1PULOJHhxOls=
 github.com/tidwall/match v1.0.1 h1:PnKP62LPNxHKTwvHHZZzdOAOCtsJTjo6dZLCwpKm5xc=
@@ -9,25 +23,14 @@ github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhV
 github.com/tidwall/pretty v1.0.1 h1:WE4RBSZ1x6McVVC8S/Md+Qse8YUv6HRObAx6ke00NY8=
 github.com/tidwall/pretty v1.0.1/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20200210222208-86ce3cb69678/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
-golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200202094626-16171245cfb2 h1:CCH4IOTTfewWjGOlSp+zGcjutRKlBEZQ6wTn8ozI/nI=
 golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200211045251-2de505fc5306/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/parser/aid.go b/parser/aid.go
index cfa1425..cbff993 100644
--- a/parser/aid.go
+++ b/parser/aid.go
@@ -2,6 +2,7 @@ package parser
 
 import (
 	"fmt"
+
 	"simple-golang-crawler/engine"
 	"simple-golang-crawler/fetcher"
 	"simple-golang-crawler/model"
@@ -46,6 +47,9 @@ func getNewBilibiliUpSpaceReqList(pageInfo gjson.Result, upid int64) []*engine.R
 	count := pageInfo.Get("count").Int()
 	pn := pageInfo.Get("pn").Int()
 	ps := pageInfo.Get("ps").Int()
+	if ps == 0 {
+		ps = 1
+	}
 	var extraPage int64
 	if count%ps > 0 {
 		extraPage = 1