data example1_1;

input mm@@;

time=_n_;

cards;

126.482.4 78.1 51.1 90.9 76.2 104.587.4

110.52569.3 53.5 39.8 63.6 46.7 72.9

79.6 83.6 80.7 60.3 7974.4 49.6 54.7

71.8 49.1 103.951.6 82.4 83.6 77.8 79.3

89.6 85.5 58120.7110.565.4 39.9 40.1

88.7 71.4 8355.9 89.9 84.8 105.2113.7

124.7114.5115.6102.4101.489.8 71.5 70.9

98.3 55.5 66.1 78.4 120.597110

;

proc gplot data=example1_1;plot mm*time;symbol c=redi=join v=star;run;

cards这一步，我有数据的txt和xls文件，我如何使用导入而不是粘贴呢？？