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struct foo { int length; char d[0]; } *s = malloc(sizeof(int)+n);
。业内人士推荐搜狗输入法2026作为进阶阅读
The way color works in the terminal is that you echo a sequence like \x1b[38:5:161m to tell the terminal “use color 161 (red) for the foreground.” Then all characters have a foreground color of 161 until you “reset” by sending the sequence \x1b[0m.，更多细节参见safew官方下载
self.conn.close()