微信小程序20个和组件用法及案例代码

当然，我很乐意为您提供微信小程序更多的API和组件用法及案例代码。以下是我为您准备的微信小程序20个API和组件用法及案例代码：

1. wx.getUserInfo() - 获取用户信息

wx.getUserInfo({
  success: function(res) {
    var userInfo = res.userInfo;
    var nickName = userInfo.nickName;
    console.log(nickName);
  }
})

2. wx.showActionSheet() - 显示操作菜单

wx.showActionSheet({
  itemList: ['item1', 'item2', 'item3'],
  success: function(res) {
    console.log(res.tapIndex);
  }
})

3. wx.chooseImage() - 选择图片

wx.chooseImage({
  count: 1,
  sizeType: ['original', 'compressed'],
  sourceType: ['album', 'camera'],
  success: function(res) {
    var tempFilePaths = res.tempFilePaths;
    console.log(tempFilePaths);
  }
})

4. wx.getLocation() - 获取地理位置

wx.getLocation({
  type: 'wgs84',
  success: function(res) {
    var latitude = res.latitude;
    var longitude = res.longitude;
    console.log(latitude, longitude);
  }
})

5. wx.openLocation() - 打开地图

wx.openLocation({
  latitude: 23.10229,
  longitude: 113.3345211,
  scale: 28,
  name: 'name',
  address: 'address'
})

6. wx.getSystemInfo() - 获取系统信息

wx.getSystemInfo({
  success: function(res) {
    var system = res.system;
    console.log(system);
  }
})

7. wx.navigateToMiniProgram() - 打开其他小程序

wx.navigateToMiniProgram({
  appId: 'appId',
  path: 'path',
  extraData: {
    key: 'value'
  },
  envVersion: 'develop/release',
  success(res) {}
})

8. wx.createInnerAudioContext() - 创建音频实例

var audioCtx = wx.createInnerAudioContext();
audioCtx.src = 'audio.mp3';
audioCtx.play();

9. wx.chooseVideo() - 选择视频

wx.chooseVideo({
  sourceType: ['album', 'camera'],
  maxDuration: 60,
  camera: 'back',
  success: function(res) {
    var tempFilePath = res.tempFilePath;
    console.log(tempFilePath);
  }
})

10. wx.createVideoContext() - 创建视频上下文

var videoCtx = wx.createVideoContext('video');
videoCtx.play();

11. wx.createInterstitialAd() - 创建插屏广告实例

var interstitialAd = wx.createInterstitialAd({
  adUnitId: 'adUnitId'
})
interstitialAd.show();

12. wx.createRewardedVideoAd() - 创建激励视频实例

var rewardedVideoAd = wx.createRewardedVideoAd({
  adUnitId: 'adUnitId'
})
rewardedVideoAd.show();

13. <view> - 视图容器组件

<view class="container">
  <text>Hello, world!</text>
</view>

14. <text> - 文本组件

<text class="text">Hello, world!</text>

15. <button> - 按钮组件

<button class="button" bindtap="onButtonClick">Click me</button>

16. <input> - 输入框组件

<input class="input" type="text" placeholder="Input something..." bindinput="onInput" />

17. <image> - 图片组件

<image class="image" src="image.png" mode="aspectFit" />

18. <swiper> - 滑块视图容器组件

<swiper class="swiper" autoplay="true" interval="5000">
  <swiper-item>
    <image src="image1.png" />
  </swiper-item>
  <swiper-item>
    <image src="image2.png" />
  </swiper-item>
</swiper>

19. <scroll-view> - 可滚动视图容器组件

<scroll-view class="scroll-view" scroll-x="true">
  <view class="item">item1</view>
  <view class="item">item2</view>
  <view class="item">item3</view>
</scroll-view>

20. <picker> - 选择器组件

<picker class="picker" mode="date" bindchange="onPickerChange">
  <view class="picker-text">{{pickerValue}}</view>
</picker>

以上是我为您准备的微信小程序20个API和组件用法及案例代码，希望对您有所帮助。如果您需要更多的API和组件用法及案例代码，可以查看官方文档。