#import "Song.h" #import "Singer.h"" // 実行ﾌﾟﾛｸﾞﾗﾑ int main(void) { id song; id singer; song = [[Song alloc] init]; [song setLyrics:@"La La La ..."]; singer = [[Singer alloc] init]; [singer setSong:song]; [singer sing]; return 0; ...
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