下列程序段的输出结果是int a=1234;float b=123.456;double c=12345.54321;printf（"%2d,%2.1f,%2

下列程序段的输出结果是int a=1234;float b=123.456;double c=12345.54321;printf("%2d,%2.1f,%2.1f",a,b,c);A．无输出 B．12，123.5,12345.5 C．1234,123.5,12345.5 D．1234,123.4,12345.5