小程序下载pdf查看

wx.downloadFile({
					url: "https://test-ossfile.syrjia.cn/uploadFiles/protocol/20210824104623599265.pdf",
					header: {},
					success: function(res) {
						var filePath = res.tempFilePath;
						console.log(filePath);
						wx.openDocument({
							filePath: filePath,
							success: function(res) {
								console.log('打开文档成功')
							},
							fail: function(res) {
								console.log(res);
							},
							complete: function(res) {
								console.log(res);
							}
						})
					},
					fail: function(res){
						console.log('文件下载失败');
					},
					complete: function(res) {},
				})