Swift的
//字体大小
textField.attributedPlaceholder = NSAttributedString.init(string:"请输入", attributes: [NSFontAttributeName:UIFont.systemFont(ofSize:15)])
//字体颜色
textField.attributedPlaceholder = NSAttributedString.init(string:"请输入", attributes: [
NSForegroundColorAttributeName:UIColor.red])
OC的 UIColor*color = [UIColorwhiteColor];
_userName.attributedPlaceholder = [[NSAttributedStringalloc] initWithString:@"请输入"attributes:@{NSForegroundColorAttributeName: color}];
看到别人对这么简单的内容收费很愤慨，你用别人东西你给钱了吗，别人看你的文章你要钱？脸呢
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