HTML部分

<!-- 遮罩层 -->
<view class="body" s-if="showmodelflag">
    <view class="medium">
        <view class="m-head">
            <text> ·在线留言·</text>
            <view class="shutdown" bindtap="closemodel"></view>
        </view>
        <view class="form-box">
            <!-- <form bindsubmit="formSubmit"> -->
                <view class="from-section">
                    <view class="sec-title">联系人</view>
                    <view class="ipt"><input bindinput="bindInputName" type="text" value="{{username}}" placeholder="请输入联系人" />
                    </view> 
                </view>
                <view class="from-section">
                    <view class="sec-title">手机号</view>
                    <view class="ipt"><input bindinput="bindInputTele" type="number" value="{{usertele}}" placeholder="请输入手机号" />
                    </view>
                </view>
                <view class="from-section">
                    <view class="sec-title">公司名称</view>
                    <view class="ipt"><input bindinput="bindInputCom" type="text" value="{{company}}" placeholder="请输入公司名称" />
                    </view>
                </view>
                <view class="submit-box">
                    <button class="submit-btn" bindtap="submit">立即留言</button>
                </view>
            <!-- </form> -->
        </view>
    </view>
</view>

JS部分

//用户输入了用户名、手机号以及留言内容
if (this.data.username && this.data.usertele && this.data.company) {
            if (this.data.usertele.length != 11) {//输入的手机号不足11位提示
                return swan.showModal({
                    title: '提示',
                    content: '请输入11位手机号',
                    confirmText: '确定',
                    cancelText: '取消',
                    success(res) {
                        if (res.confirm) {
                            console.log("确定")

                        } else if (res.cancel) {
                            console.log("取消")
                        }
                    }
                })
            }
            if (this.data.usertele.length == 11) {//输入的手机号满足11位
                //正则匹配开头是1总长度为11的号码
                let str = /^1\d{10}$/;
                if (str.test(this.data.usertele)) {//满足条件发请求
                    var subData = {
                        data: JSON.stringify({ name: this.data.username, tel: this.data.usertele, user_id: this.data.shopid, supply_id: this.data.goodsid,content: this.data.company })
                    };
                    swan.request({
                        url: config.config.api_base_url + "shop_item/consult",
                        header: {
                            "Content-Type": "application/x-www-form-urlencoded"
                        },
                        method: "POST",
                        data: subData,
                        success: res => {
                            // 信息正确且提交成功关闭模态框
                            this.setData({
                                showmodelflag: false,
                                username:'',
                                usertele:'',
                                company:'',
                            })
                            console.log("信息正确且提交成功")
                            swan.showToast({
                                title: '提交成功',
                                success() {

                                }
                            });
                        }
                    });

                } else {
                    //手机号格式不正确
                    return swan.showModal({
                        title: '提示',
                        content: '手机号格式不正确',
                        confirmText: '确定',
                        cancelText: '取消',
                        success(res) {
                            if (res.confirm) {
                                console.log("确定")

                            } else if (res.cancel) {
                                console.log("取消")
                            }
                        }
                    })
                }
            }


        }

每个女程序员，都必须拥有强壮的体魄。