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