昌超给的top适配 3x 代码

适配3x

NSString *navbgImageStr=@"NCMI.bundle/top_640x88";     if(SYSTEM_VERSION >= 7.0){         if (NCM_WIN_WIDTH >= 414) {             navbgImageStr=@"NCMI.bundle/top_1242x248";         }else if(NCM_WIN_WIDTH >= 375){             navbgImageStr=@"NCMI.bundle/top_750x150";         }else{             navbgImageStr=@"NCMI.bundle/top_640x128";         }     }     NSString *bgIamgeStr=@"NCMI.bundle/bg_nc_640x828";     if (NCM_WIN_WIDTH >= 414) {         bgIamgeStr =@"NCMI.bundle/bg_nc_1242x2016";     }else if(NCM_WIN_WIDTH >= 375){         bgIamgeStr =@"NCMI.bundle/bg_nc_750x1206";     }else if(NCM_WIN_HEIGHT>480){         bgIamgeStr =@"NCMI.bundle/bg_nc_640x1008";     }