Original address: http://blog.csdn.net /sunnyfans/article/details/17969531
Question: Adopt Surface to achieve multi-touch zoom, drag display function.
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Tag: picture
Pygobject (1 hundred) Cairo Series – Cairo.surface implements picture reflection
The examples in this article need to use the cairo.Surface class
cairo.Surface is the abstract type representing all different drawing targets that cairo can render to. The actual drawings ar
What is it in the 2019 South China University of Technology? Is there any empty? Can you come to alchem? (Thinking of thinking)
https://ac.nowcoder.com/acm/contest/625/B
Analysis:
All status is only 1<< 18, so we can preprocess f[u][j], and then build a state diagram of all the states that u can transfer;