qt主要的类

源地址:http://www.kuqin.com/qtdocument/mainclasses.html

原地址https://m.baidu.com/from=1200a/bd_page_type=1/ssid=0/uid=0/pu=sz%401320_480%2Cosname%40baidubrowser%2Ccua%40_a-qi4aq-igBNEqlI5me6NNy2IgcasiH_hvDCSGSNT8qB%2Ccut%405kSYMlfgXOynkXMIravjh_h0vC_2uDPWpi3purqPC%2Cctv%402%2Ccfrom%401200a%2Ccen%40cuid_cua_cut%2Ccsrc%40app_box_txt%2Cta%40iphone_2_7.0_5_7.11%2Cusm%401/baiduid=FD26CAA2735249722589DCABA8F4984F/w=0_10_/t=iphone/l=3/tc?ref=www_iphone&lid=7228365190335466308&order=2&fm=alop&tj=www_normal_2_0_10_title&vit=osres&m=8&srd=1&cltj=cloud_title&asres=1&title=Qt%E7%9A%84%E7%B1%BB_%E9%85%B7%E5%8B%A4%E7%BD%91&dict=32&wd=&eqid=64504fd7d4be8c00100000015b51f307&w_qd=IlPT2AEptyoA_yioC1ZIuqLIJoIGeK&tcplug=1&sec=31382&di=68d40d38b3ab4bb8&bdenc=1&nsrc=IlPT2AEptyoA_yixCFOxXnANedT62v3IEQGG_yNFAz3595qshbWxBcVuZjzwRXKTHVGwdoSBfM-CgyHcAT-il17&clk_info=%7B%22srcid%22%3A1599%2C%22tplname%22%3A%22www_normal%22%2C%22t%22%3A1532104712540%2C%22xpath%22%3A%22div-a-h3%22%7D