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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3 J" r2 x, B1 _
if <condition> then
! N4 G* _6 `' o4 s3 G <statement sequence1>;, l* p) v$ |. B
elseif <condition> then7 N2 S) e2 q2 N8 x; G
<statement sequence2>;% S. M- k8 ~6 K4 c( T. { o
else
$ p: t! I: \5 L& { <statement sequence3>;8 Y/ A: l+ D* }2 j1 k; k! ]* o7 I* R; |
end;
6 [! M) W# w9 q9 ~; w. _ @& i如果分支比较多，用：# I8 n5 j: Z; O+ C& z0 p ]
inspect <expression>5 f. F4 Y, D9 ?
when <constant_list> then
. G1 }9 S0 a* z/ @6 |% `4 s; d' P <statement sequence1>;: A# c4 Z) O4 Q
when <constant_list> then
* C2 }# M8 w* T( @7 [; B <statement sequence2>;
# U" S1 f. P/ |( L ...
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<statement sequence3>;
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3 K$ ?9 k4 p1 {( f% m; y$ B% @& B2循环语句2 X# o$ \+ _' a$ `. w
(1) from <statement sequence1>& J" c9 d2 r) t$ ~7 |1 q1 S I t, m7 o
until <condition> loop
1 }% C0 U; q0 e! e+ A% P7 Y/ } <statement sequence2>;
! p/ _% O; S0 }) d& P4 V( j end;5 U+ K: V% Y) i4 v9 Q" b7 U9 p
(2) while <condition> loop
2 [! B1 k. W9 q" \* F) A <statement sequence1>;, k* D6 I; T* X( `' z* P
end;
1 r3 }/ `" p' x1 P! Q! e9 B (3) repeat 2 [. r, G% c9 G* j4 T, ^
<statement sequence1>;
$ w6 s& N' P* W# p3 t5 w% Z& n until <condition>;4 F* h+ |0 M- `" P) p
(4) for <condition> to <condition> loop
' n1 l9 m/ i5 v+ w) m <statement sequence1>;
8 v1 O# W/ [; K5 G- Y next;3 {" _- N* h/ g) ^0 i3 v
3中断语句" L& l( M% D5 ~
waituntil <condition> prio <integer expression>;
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8 w, O# B \: C/ ^以上为常用的函数！ j$ O/ C6 ^+ g* ]
还有很多，如有需要我把资料发到你邮箱里 # M- B" A; L% q: {
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