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发表于 2012-11-13 08:48:12
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1判断语句
" m) s1 Y+ V+ |: b2 s: ?" S( r% w3 P if <condition> then
+ c# |( e. x" o <statement sequence1>;
- l3 a+ E3 a, k" J4 m* C elseif <condition> then% w, z* F6 |1 Y
<statement sequence2>;
5 [- @5 Q, J1 p: Q else
# i, Q/ z9 G7 C! `% k i <statement sequence3>;
+ M$ K" N2 h" x: B end;
6 H, s5 ?/ {9 i- ~如果分支比较多，用：
3 ]& u; C6 K1 y: z; q w inspect <expression>
+ ^ z; o+ S& Y2 _0 j when <constant_list> then9 H! R5 I, }5 j5 t" C& I; c, N
<statement sequence1>;
' c" k5 ^9 a9 y4 `5 w when <constant_list> then
* f- S+ G9 X! ` <statement sequence2>;
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else5 ]: I7 P5 t3 p7 ~" d* O/ r0 n9 Y4 q
<statement sequence3>;8 a6 Y% g1 T# c. o
end;. Q# q+ t/ n1 Z. H: Q7 V
+ k7 [* J$ i' O& {! m2循环语句6 y2 P2 B* @2 M5 w F6 H, p
(1) from <statement sequence1>
3 @9 ~' P- m6 ] until <condition> loop- T$ c- i' h6 a3 |+ j' V
<statement sequence2>;9 O+ W3 c( q2 T/ s& ~& h1 ~
end;
* O% o! n6 q$ c+ P4 Y (2) while <condition> loop
8 n, W; m, S. |8 C, B& ~7 m( [, p) ? <statement sequence1>;
% J: i7 ]6 X" w: F8 F end;. R$ g; n0 F$ Q9 O# G8 L, L% C
(3) repeat
& F* [$ J# A1 L4 F! I& b <statement sequence1>;
4 e6 b Y$ Z3 C4 { T# u2 L$ E until <condition>;
* x6 g+ S0 y0 f4 W' `4 G8 e (4) for <condition> to <condition> loop8 a8 M( ?- i8 [
<statement sequence1>;
1 h7 ~; Z* O# \4 i- \6 j next;, m0 {$ H1 }6 k7 u$ n
3中断语句% ]& P+ N# @+ q8 V* C
waituntil <condition> prio <integer expression>;# o# M b8 b. z3 {+ b! Z6 s) L
# |9 |* h( C+ \) N
" h7 h8 |5 {) { Y; o以上为常用的函数！
& j+ \2 v4 x- x" t5 ]& l* g U' }9 F还有很多，如有需要我把资料发到你邮箱里
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