{

            fieldLabel: 'Send To',

            name: 'to',

            allowBlank: false,

            regex: /^(N
------解决方案--------------------
I).*S(\d)?$/,

            regexText: '以“N”开头，或I开头且以“S“或”S+1位数字”',

            anchor:'100%'  // anchor width by percentage

        }