详解vue如何使用rules对表单字段进行校验

 <form ref="loginform" :model="form" :rules="rules" @keydown.enter.native="handlesubmit" class="form-con">
            <formitem prop="phone">
              <input v-model="form.phone" prefix="md-person" placeholder="请输入您的手机号" size="large" class="login-form-input" :maxlength="11"></input>
            </formitem>
            <formitem prop="password">
              <input type="password" v-model="form.password" prefix="md-lock" placeholder="请输入您的密码" size="large" class="login-form-input" :maxlength="100"></input>
            </formitem>
            <formitem prop="code">
              <input v-model="form.code" placeholder="请输入验证码" prefix="ios-barcode" size="large" class="login-form-input" :maxlength="4"></input>
              <img @click="refloginimg" :src="loginimgsrc" class="login-img"/>
            </formitem>
            <formitem>
              <button @click="handlesubmit" :loading="submitloading" type="info" long size="large" class="login-btn" icon="md-log-in">
                <span v-if="!submitloading">立即登录</span>
                <span v-else>正在登录，请稍候...</span>
              </button>
            </formitem>
          </form>

/** 这个文件只允许放表单验证方法 **/

//验证手机号
export function isphone(rule, value, callback) {
  if (!value) {
    return callback(new error('输入不可以为空'));
  }
  var pattern = /^1[34578]\d{9}$/
  if(pattern.test(value)){
    return callback()
  }
  return callback(new error('输入的手机号错误'))
}

rules: {
          phone: [
            { required: true, message: '手机号不能为空', trigger: 'blur' },
            { type: 'string', min: 11, message: '手机号不允许小于11位', trigger: 'blur' },
            { validator: isphone, trigger: 'blur' },
          ],
          password: [
            { required: true, message: '密码不能为空', trigger: 'blur' },
            { type: 'string', min: 6, message: '密码不允许小于6位', trigger: 'blur' },
          ],
          code: [
            { required: true, message: '验证码不能为空', trigger: 'blur' },
            { type: 'string', min: 4, message: '验证码必须是4位', trigger: 'blur' },
          ],
        },

/* 是否是公司邮箱*/
export function iswscnemail(str) {
 const reg = /^[a-z0-9](?:[-_.+]?[a-z0-9]+)*@wallstreetcn\.com$/i;
 return reg.test(str.trim());
}

/* 合法uri*/
export function validateurl(textval) {
 const urlregex = /^(https?|ftp):\/\/([a-za-z0-9.-]+(:[a-za-z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-za-z0-9-]+\.)*[a-za-z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-za-z]{2}))(:[0-9]+)*(\/($|[a-za-z0-9.,?'\\+&%$#=~_-]+))*$/;
 return urlregex.test(textval);
}

// 验证是否整数
export function isinteger(rule, value, callback) {
 if (!value) {
  return callback(new error('输入不可以为空'));
 }
 settimeout(() => {
  if (!number(value)) {
   callback(new error('请输入正整数'));
  } else {
   const re = /^[0-9]*[1-9][0-9]*$/;
   const rscheck = re.test(value);
   if (!rscheck) {
    callback(new error('请输入正整数'));
   } else {
    callback();
   }
  }
 }, 1000);
}


// 验证是否是[0-1]的小数
export function isdecimal(rule, value, callback) {
 if (!value) {
  return callback(new error('输入不可以为空'));
 }
 settimeout(() => {
  if (!number(value)) {
   callback(new error('请输入数字'));
  } else {
   if (value < 0 || value > 1) {
    callback(new error('请输入[0,1]之间的数字'));
   } else {
    callback();
   }
  }
 }, 1000);
}

// 验证端口是否在[0,65535]之间
export function isport(rule, value, callback) {
 if (!value) {
  return callback(new error('输入不可以为空'));
 }
 settimeout(() => {
  if (value == '' || typeof(value) == undefined) {
   callback(new error('请输入端口值'));
  } else {
   const re = /^([0-9]|[1-9]\d|[1-9]\d{2}|[1-9]\d{3}|[1-5]\d{4}|6[0-4]\d{3}|65[0-4]\d{2}|655[0-2]\d|6553[0-5])$/;
   const rscheck = re.test(value);
   if (!rscheck) {
    callback(new error('请输入在[0-65535]之间的端口值'));
   } else {
    callback();
   }
  }
 }, 1000);
}

/* 小写字母*/
export function validatelowercase(str) {
 const reg = /^[a-z]+$/;
 return reg.test(str);
}