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发表于 2012-11-13 08:48:12
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1判断语句) E6 z% Q3 n/ j, [2 [$ F/ x6 J
if <condition> then
2 t( ?: m* |8 d0 ?* k1 v <statement sequence1>;% }# U {6 b! a/ t b3 U
elseif <condition> then" {9 @, q, w: ?) H, i5 X
<statement sequence2>;% [, f+ z5 f& ]/ \/ i
else
# P8 q/ h1 |; J W* ^8 X <statement sequence3>;
: d V3 a/ C4 b- a. @& I end;
1 X j% A9 a0 V8 R; C如果分支比较多，用： h u2 n& m9 ~; V$ D
inspect <expression>' V' D; {, A* D- T# k
when <constant_list> then6 ?! X) E6 j0 t/ {
<statement sequence1>;
8 E$ Z% i3 Z4 e; A* n5 s when <constant_list> then4 b' O4 H; Z8 w
<statement sequence2>;
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else5 A- x, ~! @/ R% }/ @" }' |
<statement sequence3>;
6 X0 ]/ b R. Jend;
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- t/ J `% q! |7 F2循环语句1 z# s3 w C9 y) \; i" J6 D
(1) from <statement sequence1> q; _6 F0 Q6 j& s
until <condition> loop
, h. h1 [& w4 }2 _ <statement sequence2>;$ p4 Y2 j. a. T# H/ Y G
end;$ Z1 [6 |0 S* j1 o2 v1 Q# J' z
(2) while <condition> loop
, A- [* Q' j, ~$ b% n2 } <statement sequence1>;
8 O' j1 n. |1 |7 Q2 g end;! y: D3 m3 u4 z1 K
(3) repeat
& ~; w$ v i7 g, U# G. P: P <statement sequence1>;
+ [% q9 d& `7 E! R4 G" g3 e# A& T until <condition>;; g3 B2 Z( `( v# C% r4 G
(4) for <condition> to <condition> loop5 h8 W) P3 t8 }7 o
<statement sequence1>;
' j% V" j. N& l next;" h `* K; i* }) ^" i3 W& j2 Y$ e
3中断语句/ A$ R, u" m! H3 u
waituntil <condition> prio <integer expression>;! {9 t; A9 g+ S: G( ]& {3 J! P* z. w
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* h& \; e5 g" f. P/ |以上为常用的函数！
2 k( E- S& M4 ~/ w/ C! ?4 O* f还有很多，如有需要我把资料发到你邮箱里
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