或者用户上传自己的收款码？但感觉这样不安全

wxml代码: [代码]<[代码][代码]view[代码] [代码]id[代码][代码]=[代码][代码]'search'[代码] [代码]>[代码][代码]        [代码][代码]<[代码][代码]input[代码] [代码]animation[代码][代码]=[代码][代码]"{{animationData}}"[代码] [代码]placeholder[代码][代码]=[代码][代码]"{{content}}"[代码] [代码]bindfocus[代码][代码]=[代码][代码]'input_focus'[代码] [代码]bindblur[代码][代码]=[代码][代码]'input_blur'[代码][代码]/>[代码][代码]</[代码][代码]view[代码][代码]>[代码]js代码: [代码]Page({[代码][代码]    [代码][代码]data:{[代码][代码]        [代码][代码]animationData:{},[代码][代码]        [代码][代码]content: [代码][代码]"시작하자!"[代码][代码],[代码][代码]    [代码][代码]},[代码][代码]    [代码][代码]input_focus: [代码][代码]function[代码][代码](){[代码][代码]        [代码][代码]// clear placeholder[代码][代码]        [代码][代码]this[代码][代码].setData({[代码][代码]            [代码][代码]content: [代码][代码]""[代码][代码],[代码][代码]        [代码][代码]});[代码][代码]        [代码][代码]// set animation[代码][代码]        [代码][代码]var[代码] [代码]animation = wx.createAnimation({[代码][代码]            [代码][代码]duration: 1000,[代码][代码]            [代码][代码]timingFunction: [代码][代码]"ease-in-out"[代码][代码],[代码][代码]        [代码][代码]});[代码][代码]        [代码][代码]this[代码][代码].animation = animation;[代码][代码]        [代码][代码]animation.translateY(-170).step();[代码][代码]        [代码][代码]this[代码][代码].setData({[代码][代码]            [代码][代码]animationData: animation.export()[代码][代码]        [代码][代码]})[代码][代码]    [代码][代码]},[代码][代码]    [代码][代码]input_blur: [代码][代码]function[代码][代码](){[代码][代码]        [代码][代码]this[代码][代码].setData({[代码][代码]            [代码][代码]content: [代码][代码]"시작하자!"[代码][代码],[代码][代码]        [代码][代码]})[代码][代码]    [代码][代码]}[代码] [代码]    [代码] [代码]})[代码]