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发表于 2012-11-13 08:48:12
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1判断语句) K: F, X- b2 a( I
if <condition> then9 o9 e0 M: b" ^" V0 b
<statement sequence1>;
) n! }! P- {4 V6 X% ]* ?; y( C elseif <condition> then
# d4 J ]' q( H9 V" t! }" Z <statement sequence2>;1 e! r3 G% o4 E4 @+ n3 D5 Y% M
else & O, M+ ~* Q- b; A* S ?* {
<statement sequence3>;
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如果分支比较多，用：
- G% {# b) F5 m9 z2 B& P inspect <expression>
+ f% r6 D3 e- y" p6 Y7 u! m3 |2 V when <constant_list> then! i g- Y+ p: K3 `$ }6 t) ]& r! X& g
<statement sequence1>;
8 Q$ _( f s3 _ l when <constant_list> then
% x3 l# W# e7 B, t. V <statement sequence2>;
" P7 m5 @+ a; d9 y ...
/ n* U6 [( x% S$ j else
0 z) L1 S8 ]5 Y, k <statement sequence3>;
# B r4 S$ a/ nend;
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2循环语句! \9 v& s- S8 M7 M2 T2 p; w
(1) from <statement sequence1>3 T* z( \5 n# K
until <condition> loop
5 G1 a+ Q1 w' Z6 i) |% S8 L <statement sequence2>;* b+ D6 `, j: j$ C- }: L* t
end;
( {1 n( T! r3 C1 e (2) while <condition> loop+ W6 l# A+ s k6 R4 X( _: X
<statement sequence1>;
7 o$ [4 i# p! O, x1 F K/ J8 { end;% ~: y. Z& a2 X) Z% R
(3) repeat
+ f, U" f% `4 Q, J# |' J <statement sequence1>;3 J" A( P; V g0 y0 R. T
until <condition>;
0 g" z. A6 Z/ Z9 }' K (4) for <condition> to <condition> loop' D; r/ l# j) W
<statement sequence1>;
: ^+ B9 F# i& E next;; o( w# K3 }) |$ t
3中断语句' p) P9 B/ c: X! B
waituntil <condition> prio <integer expression>;
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以上为常用的函数！) y1 ^4 M8 r) Z/ [: F% d% U- I
还有很多，如有需要我把资料发到你邮箱里 * ]- P+ `5 A# Q( x7 a6 g$ C& X
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