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发表于 2012-11-13 08:48:12
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1判断语句7 M2 R1 ]. K6 D4 n+ `, G |* S
if <condition> then
& o( U& e5 S; R$ e- a2 z X6 }8 ] <statement sequence1>;
4 S/ s$ H1 g% ]! }& t( T) H$ U* i elseif <condition> then
( t% k% l! \$ v7 W& d <statement sequence2>;
+ ]" Q& I+ M2 i8 k, r& E$ L& m5 N7 B else 3 B' [8 m" I: s. S2 v* [, M' u
<statement sequence3>;
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如果分支比较多，用：; r: ~+ S3 ]6 q2 X! v
inspect <expression>* ^5 _# e( N5 N% _8 t }
when <constant_list> then) ^" o. |" s3 H! M
<statement sequence1>;0 a- G5 }+ ^& W
when <constant_list> then4 q5 D; V. K5 y
<statement sequence2>;1 A5 I5 C) j. g& k
...$ T5 M; F' E- {9 y
else, v7 v% x' B: ~0 R$ E, r& Z
<statement sequence3>;1 I& u3 A+ P7 M) w2 M
end;# _* z0 U# V* H$ ?
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2循环语句8 |) Q3 ^4 j/ \, X5 v) c% `
(1) from <statement sequence1>! _( U0 g' i1 e: L
until <condition> loop# P5 i7 j! a7 o* K: r2 q$ ^
<statement sequence2>;+ Y8 Y+ W6 f8 l6 l. Y9 N
end;% c3 v* u- e1 ?# @
(2) while <condition> loop n( p: \, \ U9 R- \4 `8 z* G" g
<statement sequence1>;
; W7 y7 @2 R% ~+ s" `. A7 O# Z i end;
( `5 H& T0 _" A2 @/ ?) v (3) repeat
* P. _' `1 z5 M, g$ N0 Y1 ]: W) c <statement sequence1>;" u) f( w3 `) \/ n _3 g' T) H
until <condition>;
( P) Q) w- f% ~& H6 t5 E (4) for <condition> to <condition> loop
6 ]; p4 I* W& g1 o. l3 W <statement sequence1>;
0 A X. s2 r7 y0 b next;
2 {, e0 |1 |9 N$ U4 ? p; \$ n3 h% }3中断语句/ @* w& b ]6 G* l0 L
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
# e9 z; k O, w- G9 r; c还有很多，如有需要我把资料发到你邮箱里 5 y l+ `7 _% ~# q9 ?
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