extension String
{
//获取字符串首字母并大写
func getFirstAlphabet() -> String
{
let transformContents = CFStringCreateMutableCopy(nil, 0, self)
//转为带声调
CFStringTransform(transformContents, nil, kCFStringTransformMandarinLatin, false)
//转为不带声调
CFStringTransform(transformContents, nil, kCFStringTransformStripDiacritics, false)
let traStr:String = transformContents as String
let index = traStr.startIndex.advancedBy(1)
return traStr.uppercaseString.substringToIndex(index)
}
}
