problem description 1. According to the original logic, when you touch the screen with your finger (always in the state of down), then enter a mouse event (such as a mouse click or hover),), at which point the previous finger touch event will be dropp...
now the server side of our company needs me to upload string data + pictures through the post form. I have tried to annotate the parameters with Multipart annotations plus PartMap, but the server cannot receive the image resources, and I have strictly f...
the code is as follows: var str= $$$8372XYI:0.7;0.80.4$$$ ; var ff=str.replace( $$$ + 8372XYI:0.7;0.80.4 + $$$ , $$$ ); ff: $$ $$$ ? ...
enter n (0 < n < = 20) and output the following square matrix (for example, in the case of nasty 4): 13 4 10 25 9 11 6 8 12 15 7 13 14 16 ...
problem description now there is a requirement to make a floating layer for the form, on which there are a large number of custom components. in the extreme, every cell has a component. has a visual area, and the floating layer can move with the scr...
from functools import wraps def single(cls): sets={} print(sets) @wraps(cls) def wrapper(*args,**kw): if ex not in sets: sets[ ex ]=cls(*args,**kw) return sets[ ex ] return wrapper @single clas...