wx.getSetting({      success(res) {        if (!res.authSetting['scope.camera']) {     //获取摄像头权限          wx.authorize({            scope:'scope.camera',            success() {              console.log('授权成功')            }, fail() {              wx.showModal({                title: '提示',                content: '尚未进行授权，部分功能将无法使用',                showCancel: false,                success(res) {                  if (res.confirm) {                    console.log('用户点击确定')                    wx.openSetting({      //这里的方法是调到一个添加权限的页面，可以自己尝试                      success: (res) = {                        if (!res.authSetting['scope.camera']) {                          wx.authorize({                            scope: 'scope.camera',                            success() {                              console.log('授权成功')                            }, fail() {                              console.log('用户点击取消')                            }                          })                        }                      },                      fail: function () {                        console.log("授权设置录音失败");                      }                    })                                      } else if (res.cancel) {                    console.log('用户点击取消')                  }                }              })            }          })        };        if (!res.authSetting['scope.record']) {     //获取录音权限          wx.authorize({            scope: 'scope.record',            success() {              console.log('授权成功')            }, fail() {              wx.showModal({                title: '提示',                content: '尚未进行授权，部分功能将无法使用',                showCancel: false,                success(res) {                  if (res.confirm) {                    wx.openSetting({                      success: (res) = {                        if (!res.authSetting['scope.record']) {                          wx.authorize({                            scope: 'scope.record',                            success() {                              console.log('授权成功')                            }, fail() {                              console.log('用户点击取消')                            }                          })                        }                      },                      fail: function () {                        console.log("授权设置录音失败");                      }                    })                  } else if (res.cancel) {                    console.log('用户点击取消')                  }                }              })            }          })        }      },      fail(res){      }    })

重点是openSetting，getSetting的使用，这里是最原始的获取权限的代码，完全有可优化的空间，感兴趣的可以自己完善，贴出来反尔就不思考了！