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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
, O3 {3 R+ J* j, e0 I3 h% V7 G% H if <condition> then
U c8 T# n: @+ E5 j: o: c <statement sequence1>;
7 V i9 E& C3 u/ K! w0 S elseif <condition> then* E+ ~7 H/ @- y+ h r5 N# u
<statement sequence2>;
2 Z1 j+ m- s( L5 c' w else $ a( \- O5 Y& y, F1 }. V' g
<statement sequence3>;
& r3 F) b' ? G! i end;
( ~7 Y- e$ c5 E) n+ _/ V如果分支比较多，用：4 Y. H' ?( o; J" c8 \# C% x
inspect <expression>
( S. T/ e3 P0 l" Q, k& C& F when <constant_list> then$ N/ c' n" B" J
<statement sequence1>;( v% ^% W; r5 d
when <constant_list> then
/ @; @( M5 ~' ]+ s0 d <statement sequence2>;
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else7 e" {2 ?. }- l- G
<statement sequence3>;
9 O4 y. o3 p2 E2 n2 O t0 q! ^7 cend;
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, p% B. @$ }1 s/ D5 K0 A5 b' }- w2循环语句! D+ q- L$ U2 X n9 [
(1) from <statement sequence1>
5 ^0 l- W) Q% R2 Z until <condition> loop& r& `* `$ X2 f, i) V. b! E
<statement sequence2>;
" l8 t# u; E* C @7 R end;* u% R; _' K* k+ o) U, C
(2) while <condition> loop
' G; f6 z7 X F5 t9 w& @ <statement sequence1>;
6 S6 `8 {* t, W6 a/ J; k9 h end;7 Q, y7 f& H' j2 l. _! D
(3) repeat
: `' p/ X: q6 o2 x <statement sequence1>;
: l1 _7 i6 N2 J5 }& n4 G until <condition>;. M$ ]+ h+ `. ]$ u; F
(4) for <condition> to <condition> loop. J9 E; t9 O a% I& \* X
<statement sequence1>;
3 e' W4 z* w, x* j' A7 M5 z next;' i" C& T, e' {
3中断语句
) u, _; _4 G, T2 V* @& z" } waituntil <condition> prio <integer expression>;+ m. |2 p4 ~, g, Y& h
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% c' |3 t4 g6 J [& H& B% Q以上为常用的函数！
* Q3 {# x$ n+ m1 x还有很多，如有需要我把资料发到你邮箱里
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+ ~$ N' u" B2 T* @$ U) F4 g
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