level 2
吉米_维奇
楼主
为什么我只想找到70分的人，我却不能使用=70的命令呢？
chart = {{"a", "aa", 90}, {"b", "bb", 80}, {"c", "cc", 70}, {"d",
"dd", 60}};
selectFun2[x_] := And[x[[2]] == "cc", x[[3]] >= 65];
Select[chart, selectFun2]
chart = {{"a", "aa", 90}, {"b", "bb", 80}, {"c", "cc", 70}, {"d",
"dd", 60}};
selectFun3[x_] := And[x[[2]] == "cc", x[[3]] = 70];
Select[chart, selectFun3]
2020年05月21日 06点05分
1
chart = {{"a", "aa", 90}, {"b", "bb", 80}, {"c", "cc", 70}, {"d",
"dd", 60}};
selectFun2[x_] := And[x[[2]] == "cc", x[[3]] >= 65];
Select[chart, selectFun2]
chart = {{"a", "aa", 90}, {"b", "bb", 80}, {"c", "cc", 70}, {"d",
"dd", 60}};
selectFun3[x_] := And[x[[2]] == "cc", x[[3]] = 70];
Select[chart, selectFun3]
