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发表于 2012-11-13 08:48:12
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1判断语句
5 y; O& z. x+ S5 A- y4 ? if <condition> then0 l, O- o- Q0 ]6 i9 I' y
<statement sequence1>;, ?0 Z: c/ c. d
elseif <condition> then9 U9 S6 t4 S+ X' U3 S4 R6 N \
<statement sequence2>;( A6 q0 w& b& s4 p( t
else
! ]) C( E# v9 x, L2 \3 K" O <statement sequence3>;
5 d7 q7 G' c: y# O# S7 { end;( C4 _2 S! q% _$ o
如果分支比较多，用：% l3 d0 z0 f# F! Q; O3 s, Q
inspect <expression>; W( D5 g% x6 M& y$ {
when <constant_list> then/ D0 ~3 T! R4 D; R% ~
<statement sequence1>; n- ~" }3 M' t. @! {
when <constant_list> then
. Z& _1 }0 f, d) |0 R- s <statement sequence2>;7 H3 l0 t2 r' O8 k2 h3 [ Z t8 q
...
: X4 Y4 I) m* G. ^8 }5 \ else
. d3 \6 t \: p7 R <statement sequence3>;
$ w! y0 M* e2 M$ o z7 I" [end;
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' \8 K+ k/ b% s7 i/ z" M" T2循环语句
& U8 I7 M9 g0 L4 m( Q (1) from <statement sequence1>$ T8 y5 C- `' C. D" }+ F9 X
until <condition> loop, L) m8 L/ X* ~& z6 r$ l3 U
<statement sequence2>; a* F: A2 o$ U, h3 s/ B/ Y2 n
end;
+ ^) U! Z' n# Z' j0 V- _" b( ^ (2) while <condition> loop' _) z; F, K& V+ o; D5 ?5 R: i
<statement sequence1>;2 F: x4 @3 F- j
end;
. ?- `; _# R' w$ t8 e (3) repeat + Z$ ?! r8 a9 d* N: H- U2 R
<statement sequence1>;+ v; X+ S3 b a- a6 ^1 g V/ O
until <condition>;
; `& b2 E$ @% R9 [ (4) for <condition> to <condition> loop
& {+ J. u" s) D: }: d" X/ G <statement sequence1>;8 h# y( k- B y6 V
next;% a3 T+ S! H' m* Y
3中断语句7 f6 `/ J. `: e; J4 M; ?; w, a
waituntil <condition> prio <integer expression>;
+ }0 h1 s9 b9 w. y
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以上为常用的函数！4 V, G- J$ s8 n1 p5 P1 B4 f" Q
还有很多，如有需要我把资料发到你邮箱里
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