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发表于 2012-11-13 08:48:12
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1判断语句
: M: V" \7 Q, a9 O N! a8 a if <condition> then
M4 w; q/ v4 Z6 t <statement sequence1>;
# U; e* {- b$ S6 o% u8 Y# D' Y elseif <condition> then9 m& I5 P6 [. y; \5 _5 Z: |/ p. t
<statement sequence2>; n1 o+ H9 X |6 H4 v! b
else 1 V$ w: \* Y f1 Y1 O. O, q& O) n
<statement sequence3>;, L' c% m: [' E+ v% s* ]5 x3 \
end;
0 e' i; P7 I: s: L" {, C/ ^: A如果分支比较多，用：
* n$ b/ J: h& v inspect <expression>
% h& A5 A+ J: v& l when <constant_list> then
- Y+ c0 E* U$ Q r0 V, ^2 ~$ }# M, M <statement sequence1>;# O& C# a2 y- k8 U& c' |: ~6 S
when <constant_list> then
( s8 N* `% G U4 b! E# o T$ J <statement sequence2>;
+ i4 K' d2 e# T; T4 b7 ? ...
& L/ r& Y( e- G" u/ b else
. A3 `2 v) w3 s" [ <statement sequence3>;
, m, }- J! H: D7 u9 }) b, J- w6 |end;6 o" k3 Q* Z* |
t0 |4 S8 m7 S( C$ @2循环语句' g2 i' t6 t, }5 M4 Y" @/ S7 R
(1) from <statement sequence1>0 e+ I4 |1 \2 Z/ a9 N* e
until <condition> loop
1 L: l. v; M; b <statement sequence2>;2 z4 i1 S# m0 F8 p+ Y8 F: n
end;
& T6 [7 q: r5 C0 J& \$ n7 u (2) while <condition> loop6 Z8 ^* u& `) l; o5 `7 K8 k9 W, h
<statement sequence1>;
. `( m' A9 ?% |$ _- G P8 ?2 W end;# g* h- C0 ]' `
(3) repeat 3 x9 d- e4 k4 r$ q6 h# G
<statement sequence1>;# P/ s8 Z0 E- P* M
until <condition>;9 J0 `, o& H& p
(4) for <condition> to <condition> loop
, x, p# M9 k' ^2 \ <statement sequence1>;
; e; @( x% o% i W7 K$ ~1 o' ~ next;
# F# }' k0 ~+ }9 v% g. w, u3中断语句" v, B- W: ^' [* F' U
waituntil <condition> prio <integer expression>;
& P' s8 K3 o. | H4 I: |, R3 q% k0 C {5 N: N* }
% c. v( H9 a5 v, B# p以上为常用的函数！/ n" O! I" E- E! f0 M
还有很多，如有需要我把资料发到你邮箱里 . F( i# U9 j8 `2 y
& d: [! w/ k, k; Q( T+ m, f
n* `4 }2 l) m, x9 f
( W6 _/ n" B- ^; P/ E& z # H% q9 M! `1 }( p$ q: E: ~
Q# ?" _/ r# {3 {
( a1 \; \' |/ `0 I5 q" d9 R# G/ [* D2 j6 q9 B! r }
) B/ f0 X. {) r" o. ?* s% K. @0 e5 L! k) V6 y) s4 m
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