Html grailstaglibg:SELECT

我是Grails平台的新手，对TagLib组件很感兴趣。 我有一个应用程序，其中我要创建一个时间选择[24小时格式选择]，由两个标签组成：小时和时间。到目前为止，我已经用这种方式编码了我的理论

def timePicker = { attrs ->
   out << "<g:select name='" + attrs['name'] + ".hour' from='${00..21}' />"
   out << "<g:select name='" + attrs['name'] + ".minute' from='${00..59}' />" 
}

def timePicker={attrs->
out您只能在GSP中使用方法调用：

def timePicker = { attrs ->
    out << "${select(from: 00..21, name: attrs.name + '.hour')}"
    out << "${select(from: 00..59, name: attrs.name + '.minute')}"
 }

def timePicker={attrs->
out您只能在GSP中使用方法调用：

def timePicker = { attrs ->
    out << "${select(from: 00..21, name: attrs.name + '.hour')}"
    out << "${select(from: 00..59, name: attrs.name + '.minute')}"
 }

def timePicker={attrs->
out您可以使用以下内容：

def timePicker = { attrs ->
    def hours = 0..21
    def stringHours = hours.collect{ String.format('%02d', it) }

    def minutes = 0..59
    def stringMinutes = minutes.collect{ String.format('%02d', it) }

    out << "${select(from: stringHours, name: attrs.name + '.hour')}"
    out << "${select(from: stringMinutes, name: attrs.name + '.minute')}"
}

def timePicker={attrs->
def小时数=0..21
def stringHours=hours.collect{String.format（'%02d'，it）}
def分钟数=0..59
def stringMinutes=minutes.collect{String.format（“%02d”，it）}
out您可以使用以下内容：

def timePicker = { attrs ->
    def hours = 0..21
    def stringHours = hours.collect{ String.format('%02d', it) }

    def minutes = 0..59
    def stringMinutes = minutes.collect{ String.format('%02d', it) }

    out << "${select(from: stringHours, name: attrs.name + '.hour')}"
    out << "${select(from: stringMinutes, name: attrs.name + '.minute')}"
}

def timePicker={attrs->
def小时数=0..21
def stringHours=hours.collect{String.format（'%02d'，it）}
def分钟数=0..59
def stringMinutes=minutes.collect{String.format（“%02d”，it）}
谢谢。但是有没有办法把一位数[0-9]格式化成两位数的
0\d
？谢谢。谢谢。但是有没有办法把一位数[0-9]格式化成两位数的
0\d
？谢谢。