iOS开发笔记-68:swift4-UItextField-文字边距

OC版本

[textField setValue:[NSNumber numberWithInt:10] forKey:@"paddingTop"];
    [textField setValue:[NSNumber numberWithInt:10] forKey:@"paddingLeft"];
    [textField setValue:[NSNumber numberWithInt:10] forKey:@"paddingBottom"];
    [textField setValue:[NSNumber numberWithInt:10] forKey:@"paddingRight"];

swift版本

textField?.setValue(NSNumber(value: 10), forKey: "paddingLeft")
设置textField左边距10

至于placeholder的边距，可以在placeholder字符串前加几个空格
比如：" 输入数字"