datat.txt

计量工具箱

1	43.72	38.46
1	45.86	35.32
1	4.74	3.78
1	40.58	35.34
1	25.86	20.83
1	36.05	36.72
1	50.94	41.67
1	42.48	30.71
1	25.6	23.7
1	49.81	39.53
2	51.03	32.52
2	27.75	18.71
2	35.72	27.01
2	35.85	18.66
2	43.28	25.58
2	48.52	39.19
2	64.18	47.7
2	38.34	27.01
2	45.39	33.57
2	43.69	27.32
3	43.9	32.86
3	23.77	18.52
3	28.6	22.93
3	27.71	25.02
3	40.38	35.13
3	36.43	27.29
3	19.31	16.99
3	16.55	12.56
3	30.97	26.76
3	46.6	41.42
4	64.29	41.86
4	42.16	28.33
4	61.99	34.21
4	34.26	15.69
4	47.67	29.7
4	45.14	23.03
4	35.31	14.8
4	35.43	21.53
4	54.33	32.86
4	59.23	42.25