微信小程序本地缓存数据增删改查

1.以wx.setStorageSync为例实现本地数据缓存的增删改

图示：

<view class='name'>姓名：{{name}}view>

<view bindtap='show'>保存view>

<view bindtap='updata'>修改view>

<view bindtap='delete'>删除view>

<view class='name'>{{text}}姓名:{{name1}}view>

var app = getApp();

Page({

data: {

name:'张三',

text:''

},

onLoad: function (options) {

var that=this;

// 添加

wx.setStorageSync('name', that.data.name);

},

show:function(){

var that = this;

// 查询

var name1 = (wx.getStorageSync('name') || "");

that.setData({

name1: name1,

text: '保存后的'

})

},

// 修改

updata:function(){

var that=this;

wx.setStorageSync('name', '李四');

var name1 = (wx.getStorageSync('name') || "");

that.setData({

name1: name1,

text: '修改后的'

})

},

delete:function(){

var that = this;

// 删除

wx.removeStorage({

key: 'name'

})

var name1 = (wx.getStorageSync('name') || "");

that.setData({

name1: name1,

text: '删除后的'

})

}

})