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1. iOS APP Project or Mac APP Project编译错误提示：“The run destination My Mac 64-bit is not valid for Running the scheme '***'.The scheme '***' contains no buildables that can be built for the SDKs supported by the run destination My Mac 64-bit. Make sure your targets all specify SDKs that 阅读全文
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// create a table view and a scroll viewNSScrollView * tableContainer = [[NSScrollView alloc] initWithFrame:NSMakeRect(10, 10, 380, 200)];NSTableView * tableView = [[NSTableView alloc] initWithFrame:NSMakeRect(0, 0, 364, 200)];// create columns for our tableNSTableColumn * column1 = [[NSTableColumn 阅读全文