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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
1 @% H2 v h% a) Y4 E if <condition> then
, Z0 i# l% L/ u <statement sequence1>;& C. C5 `# W' ^% d
elseif <condition> then
' ]& \! d6 }6 ^- p( f2 G/ ~ <statement sequence2>;
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<statement sequence3>;' Y1 L" }/ S/ R# H) Z% X
end;) A" H/ U& ~% L2 W7 u: x0 }
如果分支比较多，用：" Q8 h' u) H/ k4 S5 T8 T+ Z0 `
inspect <expression>
2 W: m! [3 A# \3 O! Y* H7 V- F when <constant_list> then
: u1 K) a' ]( B! Y' g <statement sequence1>;
: j5 G# q U( k7 w* M when <constant_list> then
; T% G% ^0 {- p0 \0 ^) u <statement sequence2>;# a% `" b' R2 i9 K
...- V" m6 Q, S0 @
else
) \" c: I! \$ D( _0 b* }+ U <statement sequence3>;# A5 p9 ]* Q6 }0 E. P9 x
end;
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2循环语句
' _+ O. @: w0 [5 S. y! o, a4 ] (1) from <statement sequence1>4 N( a1 G! H' g6 O
until <condition> loop
9 B1 v3 _% Y$ g% z! H <statement sequence2>;1 \0 W! |* K' x+ w
end;3 X9 W( b5 n. N! R+ o
(2) while <condition> loop
. x' a+ X8 p# p+ h <statement sequence1>;5 D, M/ ]: g& l
end;' t1 [7 n# L$ f- y; v, j
(3) repeat 2 }% w8 G8 R) }5 C
<statement sequence1>;# z$ \( ? P7 v+ q2 _
until <condition>;
4 D. \ W# R; c. V (4) for <condition> to <condition> loop5 ~1 Q2 W) \; }" g
<statement sequence1>;
4 f/ R- K( k5 N* i next;; ^; A3 [0 a& M- ]1 P
3中断语句
# _) h/ }; n# f waituntil <condition> prio <integer expression>;4 k7 @( X3 j# r! r6 V4 m
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6 o8 _9 u0 u0 `/ @' R8 Y以上为常用的函数！1 O7 q2 y3 f; h- d6 m8 D
还有很多，如有需要我把资料发到你邮箱里
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