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view class="container" class="zn-uploadimg">

<button type="primary"bindtap="showok">消息提示框</button>  

<button type="primary"bindtap="modalcnt">模态弹窗</button> 

<button type="primary"bindtap="actioncnt">操作菜单</button>

 </view>

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//show.js

//获取应用实例

var app = getApp()

Page({

    showok:function() {

        wx.showToast({

            title: '成功',

            icon: 'success',

            duration: 2000

        })

    }

})

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//show.js

//获取应用实例

var app = getApp()

Page({

    showok:function() {

        wx.showToast({

            title: '成功',

            icon: 'success',

            duration: 2000

        })

    }

})

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//show.js

//获取应用实例

var app = getApp()

Page({

    modalcnt:function(){

        wx.showModal({

            title: '提示',

            content: '这是一个模态弹窗',

            success: function(res) {

                if (res.confirm) {

                console.log('用户点击确定')

                } else if (res.cancel) {

                console.log('用户点击取消')

                }

            }

        })

    }

})

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//show.js

//获取应用实例

var app = getApp()

Page({

    actioncnt:function(){

        wx.showActionSheet({

            itemList: ['A', 'B', 'C'],

            success: function(res) {

                console.log(res.tapIndex)

            },

            fail: function(res) {

                console.log(res.errMsg)

            }

        })

    }

})

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<!--show.wxml-->

<view class="container" class="zn-uploadimg">

<button type="primary"bindtap="modalinput">

modal有输入框

</button>

</view>

<modal hidden="{{hiddenmodalput}}" title="请输入验证码" confirm-text="提交" cancel-text="重置" bindcancel="cancel" bindconfirm="confirm">

 <input type='text'placeholder="请输入内容" auto-focus/>

</modal>

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//show.js

//获取应用实例

var app = getApp()

Page({

    data:{

  hiddenmodalput:true,

  //可以通过hidden是否掩藏弹出框的属性，来指定那个弹出框

 },

    //点击按钮痰喘指定的hiddenmodalput弹出框

    modalinput:function(){

        this.setData({

         hiddenmodalput: !this.data.hiddenmodalput

        })

    },

    //取消按钮

    cancel: function(){

  this.setData({

   hiddenmodalput: true

  });

 },

 //确认

 confirm: function(){

  this.setData({

      hiddenmodalput: true

     })

 }

})