去除 textView 左右边距:
self.textView.textContainer.lineFragmentPadding = 0;
去除 textView 上下边距:
self.textView.textContainerInset = UIEdgeInsetsZero;
去除 textView 左右边距:
self.textView.textContainer.lineFragmentPadding = 0;
去除 textView 上下边距:
self.textView.textContainerInset = UIEdgeInsetsZero;