有人知道我是否需要管理flutter firebase消息传递示例中的data id和status选项吗?firebase.google.com/docs/cloud-messaging/concept-options#notification-messages-with-optional-data-payload上找不到这一点 Flutter"body": "this is a body","title": "this is a title"},
as np# Create a black image# Draw a diagonal blue linewith thickness of 5 pxcv2.imshow('img',img)
cv2.waitKeyor unsupported array type) in cvGetMat, file
df.at[x,0]=255 # trying to create a white line as a test
# so i decided to try a few things to see whatfor x in range(512)更改为for x in range(511)。同样的问题,除了x变量结束为510之外,没有太多的变化。