C# pictureBox 设置图片的几种方式

            string imUrl = @"http://c-or.cn/1.ico";
            this.pictureBox1.ImageLocation  = imUrl;

            string imPath = @"D:\WaltzTool\驻留\图标\彩虹头像\favicon_32x.ico";
            this.pictureBox1.ImageLocation = imPath;

            string imPath = @"D:\WaltzTool\驻留\图标\彩虹头像\favicon_32x.ico";
            this.pictureBox1.Image = Image.FromFile(imPath);

            this.pictureBox1.Image = CCon_20210821.Properties.Resources.bilibili;