if((h=to_be_deleted[classno])) {
[2] K. Lemström & P. Fränti: “N-Candidate methods for location invariant dithering of color images” (2000). ↑。快连下载-Letsvpn下载对此有专业解读
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Where we're coming from，更多细节参见WPS下载最新地址
Why is this a problem?