tap hop lenh duoc chay theo thu tu.
ban luyen
Tcl
lo trinh thuc hanh de hoc Tcl tu con so 0
dinh nghia truoc
Tcl la gi
Tcl dung de viet chi dan chinh xac. O day ban hoc theo lo trinh thuc hanh de hoc Tcl tu con so 0. Hay bat dau voi mot mo hinh: dau vao qua cac buoc roi thanh dau ra.
thong tin chay toi thieutep
script.tclchay tclsh script.tclthoi quen hoc mot phan nho cua Tcl, go vi du toi thieu roi chaygia tri la du lieu. bien la ten de giu du lieu.
mot viec nho co ten, nhan dau vao va tao ket qua.
Tcl shell chay code trong script.tcl.
doan code dau tien
dau ra chuong trinh
entry point output syntax putsputs 42
dau ra 42pha he ngon ngu
cay pha he Tcl
xem Tcl den tu dau, gan voi ngon ngu nao, va nen hoc gi tiep.
tu con so 0
1doc mot quy tac2doan dau ra3go bang tri nho4chay kiem tra5lap lai voi mot thay doi
Ngan hang cau hoi
Tim truoc khi luyen
Chon giai doan hoac tim trong ngan hang cua ngon ngu nay roi mo bai tap.
Q 1Lua chonGiai doan 1 dinh nghia
Tcl cau 1
Tcl cau 1. Chon mo ta phu hop nhat voi in mot gia tri.
Q 2Lua chonGiai doan 1 dinh nghia
Tcl cau 2
Tcl cau 2. Chon mo ta phu hop nhat voi dat ten cho gia tri.
Q 3Lua chonGiai doan 1 dinh nghia
Tcl cau 3
Tcl cau 3. Chon mo ta phu hop nhat voi ham tai su dung.
Q 4Lua chonGiai doan 1 dinh nghia
Tcl cau 4
Tcl cau 4. Chon mo ta phu hop nhat voi tap hop co ban.
Q 5Lua chonGiai doan 1 dinh nghia
Tcl cau 5
Tcl cau 5. Chon mo ta phu hop nhat voi in mot gia tri.
Q 6Lua chonGiai doan 1 dinh nghia
Tcl cau 6
Tcl cau 6. Chon mo ta phu hop nhat voi dat ten cho gia tri.
Q 7Lua chonGiai doan 1 dinh nghia
Tcl cau 7
Tcl cau 7. Chon mo ta phu hop nhat voi ham tai su dung.
Q 8Lua chonGiai doan 1 dinh nghia
Tcl cau 8
Tcl cau 8. Chon mo ta phu hop nhat voi tap hop co ban.
Q 9Lua chonGiai doan 1 dinh nghia
Tcl cau 9
Tcl cau 9. Chon mo ta phu hop nhat voi in mot gia tri.
Q 10Lua chonGiai doan 1 dinh nghia
Tcl cau 10
Tcl cau 10. Chon mo ta phu hop nhat voi dat ten cho gia tri.
Q 11Lua chonGiai doan 1 dinh nghia
Tcl cau 11
Tcl cau 11. Chon mo ta phu hop nhat voi ham tai su dung.
Q 12Lua chonGiai doan 1 dinh nghia
Tcl cau 12
Tcl cau 12. Chon mo ta phu hop nhat voi tap hop co ban.
Q 13Lua chonGiai doan 1 dinh nghia
Tcl cau 13
Tcl cau 13. Chon mo ta phu hop nhat voi in mot gia tri.
Q 14Lua chonGiai doan 1 dinh nghia
Tcl cau 14
Tcl cau 14. Chon mo ta phu hop nhat voi dat ten cho gia tri.
Q 15Lua chonGiai doan 1 dinh nghia
Tcl cau 15
Tcl cau 15. Chon mo ta phu hop nhat voi ham tai su dung.
Q 16Lua chonGiai doan 1 dinh nghia
Tcl cau 16
Tcl cau 16. Chon mo ta phu hop nhat voi tap hop co ban.
Q 17Lua chonGiai doan 1 dinh nghia
Tcl cau 17
Tcl cau 17. Chon mo ta phu hop nhat voi in mot gia tri.
Q 18Lua chonGiai doan 1 dinh nghia
Tcl cau 18
Tcl cau 18. Chon mo ta phu hop nhat voi dat ten cho gia tri.
trac nghiem
Tcl cau 1
Tcl cau 1. Chon mo ta phu hop nhat voi in mot gia tri.
puts 42
tham khao
mau cho script.tcl
Tcl shell
tclsh script.tclentry point output syntax puts
dau ra chuong trinh
puts 42
- Run the smallest file first
- Print one known value
- Check the output before adding more code
variables assignment types set
gia tri va ten
set total 42 puts $total
- Give values readable names
- Keep one idea per line while learning
- Trace the value before changing it
function collection List
ham va tap hop
proc add {a b} {
return [expr {$a + $b}]
}
set scores {40 2}
puts [llength $scores]- Keep functions small
- Return useful values
- Use the common collection before reaching for frameworks