let str = "富文本设置"
textView.isEditable = false
self.view.addSubview(textView)
let amountString = NSMutableAttributedString(string:str)
let s = NSString(string: str)//需要这一步。
let rang = s.range(of: s as String)
amountString.addAttribute(NSFontAttributeName, value: UIFont.systemFont(ofSize: 13) ,range: rang)
//行间距为5
let paragraphStye = NSMutableParagraphStyle()
paragraphStye.lineSpacing = 5
amountString.addAttribute(NSParagraphStyleAttributeName, value: paragraphStye, range: rang)
for i in 0..<arrStr.count{
//与数组里相同的字符串,字体变大。也可改变颜色。
//指定range范围内的文本改变。
let newRange = s.range(of: arrStr[i] as String)
amountString.addAttribute(NSForegroundColorAttributeName, value: UIColor.black, range: newRange)
amountString.addAttribute(NSFontAttributeName, value: UIFont.systemFont(ofSize: 15) ,range: newRange)
}
textView.attributedText = amountString