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发表于 2012-11-13 08:48:12
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1判断语句8 S! v/ G0 @# C) F" b( | @
if <condition> then
, C7 M) }1 p( l- k2 r' Q a3 B" D <statement sequence1>;
6 X3 [0 w. d$ z: H0 z& E% i* m elseif <condition> then& p6 p) c& _; U' t8 g# ^- f- J
<statement sequence2>;: u3 x" e1 A9 n: H9 s4 u* h" a; F
else - J& b! V1 e: L+ m3 @& K/ F) @7 `, z
<statement sequence3>;5 L" |: W, M8 j6 u
end;. M) A$ J4 ]1 b$ X
如果分支比较多，用：0 [" C2 t/ ^" N/ |4 u, P
inspect <expression>
# \0 V" A' c/ b8 ?- v( ? K when <constant_list> then
3 V+ q! L% E- }4 V2 u <statement sequence1>;
) A4 o8 P# ]) f# h5 `' \, X8 W! U: y when <constant_list> then
) y* A/ i$ O4 I+ s d4 s <statement sequence2>;
4 k2 W( l: t2 {3 z& {" L2 E ...3 }- ~0 {* {6 \
else% E; x4 U* j) r. h d) e0 z
<statement sequence3>;# l: H, O4 c- \0 _- L# h2 B
end;
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2循环语句$ ]) f$ A2 k! x5 D1 W
(1) from <statement sequence1>5 \+ R! h& q1 C3 A8 Q- Z
until <condition> loop
/ t& ]. ^3 Z! q5 k, @9 n5 M# H <statement sequence2>;0 A- c; Q0 Y! O F
end;9 @* ~( d) |% b. t+ B! ?
(2) while <condition> loop
6 o. G, g0 I4 a+ ^. F. Y <statement sequence1>;
5 P$ X5 [! _! @, f- P end;
6 o. c- S$ i) o7 H (3) repeat & B. [+ r ?) K& g
<statement sequence1>;7 r$ \, |# O% d3 R, {- e
until <condition>;
/ k x6 T( V3 F! U8 b$ V& ] (4) for <condition> to <condition> loop
7 i4 T. p% u$ p. C4 l* I <statement sequence1>;* ]' J1 @+ B* {. U4 N4 Z
next;# M' X9 {/ Q4 X( R
3中断语句) X6 c( E5 D) R* S& `, [6 L
waituntil <condition> prio <integer expression>;/ I% e" k! m' S" h- c
: g. @ w0 i& `1 K/ |- {0 n
. `7 e- w4 X, o7 N' ^- f以上为常用的函数！
" o/ E. O [. R! d( \. Q0 h还有很多，如有需要我把资料发到你邮箱里
& M4 }" J8 n8 V# o: B; W
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