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发表于 2012-11-13 08:48:12
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1判断语句
, _, C2 y) h# p! a# U' w6 G if <condition> then
( t% x0 n2 ?0 j9 V7 N <statement sequence1>;0 b3 X2 a" f8 [5 X8 L
elseif <condition> then
6 @4 q0 D5 Z) }; b4 w <statement sequence2>;
. S5 J: ~( |. }! `& U else
) Q% O" h) ?6 c6 a/ K6 q2 o <statement sequence3>;
$ `; @8 x, z2 B. Z8 I5 u end;: s [2 |; P! R% A; G4 ^
如果分支比较多，用：
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when <constant_list> then
. o* Y D ]0 I <statement sequence1>;
9 t6 |+ h' ^+ c3 M! I; l9 U when <constant_list> then$ T$ n: x+ g0 c) w
<statement sequence2>;
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else
, p. ?, h; G; p; E" g) o+ s <statement sequence3>;
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; S& o& Y. J7 h0 c0 \; c2 [2循环语句
8 G d# a$ B; p B* V3 @ (1) from <statement sequence1>
4 v& t( K5 H4 M0 `% |: C9 d until <condition> loop
9 L) {+ X! H" r+ m7 {* o: T0 W <statement sequence2>;$ I# R. y+ Y3 f# c4 Y7 J# L
end;
: s, q) S0 a8 K8 ~) E# \) Z+ G (2) while <condition> loop
. q2 }3 Z1 ^. |" d+ {5 M: e2 C7 N6 N <statement sequence1>;& h/ _- a( S( p% J9 `4 W
end;4 H2 C, l/ _( h! K
(3) repeat ( T* b) f/ V0 \, t$ }
<statement sequence1>;& g6 E6 L5 B) D( N& _, E3 O3 b, @
until <condition>;
$ p/ y$ g# [+ U (4) for <condition> to <condition> loop% }! `/ R v3 D: r
<statement sequence1>;% l9 \5 y5 t4 m8 ~
next;
* T! v0 H+ V" B) q$ z3中断语句
6 j2 `8 P, O+ Q5 G$ m waituntil <condition> prio <integer expression>;- g: a* z. z4 A
H( Y R) k0 D& r( _& K% B* ^. B+ f* c0 z
以上为常用的函数！
% ?3 U- n; G/ F# g9 y; ~还有很多，如有需要我把资料发到你邮箱里
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