iApp打开手机微信分享

滴，打开手机微信分享文本内容。增强软件社交活跃性能。

sit(a, "action", "android.intent.action.SEND")
sit(a,"classname","com.tencent.mm","com.tencent.mm.ui.tools.ShareImgUI")
sit(a, "extra", "android.intent.extra.TEXT", "分享微信文本内容")
uit(a, "chooser", "分享朋友")