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发表于 2012-11-13 08:48:12
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1判断语句. L2 p. C# J* V" \. \
if <condition> then
: I2 e1 w3 ]" G/ w" |" B$ s8 o( A <statement sequence1>;
' c' u* |: s: U' b; } elseif <condition> then
1 Y! _* h- b( \& ^ <statement sequence2>;
( i. r5 b Y: q) K8 y else 1 \( C4 ^! Y1 a a0 W6 R
<statement sequence3>;
( S% N; a8 }, u- I; j end;6 _( ]& |/ a. D2 V
如果分支比较多，用：- H4 w4 f$ m' D& X
inspect <expression>) D. b3 O/ o5 C }' i2 d# j
when <constant_list> then9 m0 b3 R9 m3 Y
<statement sequence1>;
0 N" u" F8 f( `) R/ I when <constant_list> then8 N8 ~& p3 I0 e: ?
<statement sequence2>;9 K' |" Y9 w s: j1 m& I
...
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<statement sequence3>;
9 y4 J" B* J6 y* W$ B/ y6 Eend;
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! o \ X, m% H+ u- ~2循环语句) J% e0 o( Q2 W1 m0 R7 L: c# m* e
(1) from <statement sequence1>
1 X( L7 w; o* c, T9 r- y) ` until <condition> loop& u' W2 v7 U! @: U* e" r- U
<statement sequence2>;0 `# J, h* {0 H2 s" [
end;3 e( F/ r. q( I- h6 B
(2) while <condition> loop
; Q* a% N3 p- R+ l7 a; m <statement sequence1>;; S. q+ H A. o B
end;7 ?+ @% p2 W; u: ]8 _4 Q( G
(3) repeat 4 ?2 x/ ?; n- F: ?! Z3 {7 Q
<statement sequence1>;
e6 u d& `8 J( r; \0 s/ N until <condition>;' h3 D0 l& d8 I5 j
(4) for <condition> to <condition> loop
9 M/ c+ ^! q# C7 T <statement sequence1>;% E9 |& X5 u' x2 W8 d* {
next;
: X+ _; }# w P- P4 T4 K- s3中断语句
) O- ?& O1 A" f/ N4 u waituntil <condition> prio <integer expression>;
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7 x6 R3 |9 o# ]以上为常用的函数！1 L% O- H7 q7 f8 R! Q" ^- ?
还有很多，如有需要我把资料发到你邮箱里 6 c) k3 i7 b3 W( J0 D9 H, \
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