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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
. V- U. B8 M# s if <condition> then
m! P+ K( M8 u& A4 { <statement sequence1>;
6 \ L' f5 _3 m" K# W elseif <condition> then8 T. l2 a. D: K3 D
<statement sequence2>;( k, |1 k0 W9 C+ z* r; |$ t9 L
else : l6 l |$ v/ g- N/ B, B
<statement sequence3>;
4 e: R8 V6 S2 r3 }1 L, t D end;
6 Q9 v4 H4 s- e. X# H& i# B" l$ x, b如果分支比较多，用：, c& t& z( @) x7 o+ l3 m8 ~) X
inspect <expression>
1 i/ a! f' S$ z2 G when <constant_list> then" o0 B# @, \7 b7 g/ T2 l6 a/ P# n" u
<statement sequence1>;
1 N) q, T/ j) J$ X. T when <constant_list> then
+ x: ^$ S* G4 E# R- Z <statement sequence2>;+ T% ~2 s9 n) L: l
...
! f8 w7 D5 S+ c$ ~ else& A: A- t. C+ A, j
<statement sequence3>;& ?' s s5 A) q( X* U
end;
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2循环语句
$ w, x ^5 q4 w/ |2 B# g (1) from <statement sequence1>5 Z, n+ H- X0 }4 [9 `7 P1 }/ z
until <condition> loop
" R- a: A; i" a <statement sequence2>;/ B% y. z9 y n$ }
end;( @, C$ |0 V) {: E
(2) while <condition> loop ^+ u3 v. g, f% L( w& Z1 f9 d4 O
<statement sequence1>;6 Q r0 e/ f% {4 x) A& R2 ^5 F7 h
end;
2 h% _+ K; a5 X( P- L3 L) c/ H (3) repeat E' E5 C4 Z% N0 @0 {
<statement sequence1>;( }+ j7 g/ f2 T9 ~! u' z9 q
until <condition>;
' u% W2 ?, w5 U, Y/ ^% x2 C (4) for <condition> to <condition> loop
4 C% D, a- ~5 y) S) ?, x# M <statement sequence1>;
, b4 _- E$ D; O/ i2 \/ ] next;: e3 a" [ Q0 d! N ~8 D
3中断语句
2 o" E5 ^, A7 G% I- k waituntil <condition> prio <integer expression>;
! f% l9 W+ l6 u& l' R" R+ ~* H* T2 A; t, {
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以上为常用的函数！8 M4 H+ R. Z" J y: g* x* C
还有很多，如有需要我把资料发到你邮箱里 9 h$ r4 }& U& P3 l# W' R
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