校验身高体重正则

体重：var weightReg = /^(0(\.\d{1}){0,1}|[1-8]\d{1,3}(\.\d{1}){0,1}|9\d{1,2}(\.\d{1}){0,1}|999(\.0){0,1}|.{0})$/;
身高：var heightReg = /^(0{1}|[1-9]\d{0,3}|.{0})$/;