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发表于 2012-11-13 08:48:12
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1判断语句0 \3 X4 r! ]6 {1 d2 X: l9 h
if <condition> then
! C7 N' H. T5 h* x% e6 d q0 n <statement sequence1>;
' G2 k1 r, Y# K+ ]4 L4 Z7 P6 Q elseif <condition> then
# k8 S) A+ D, J& \ <statement sequence2>;
0 W9 N, V9 k: ], m% X else 6 ]4 o0 ]& \1 E# O
<statement sequence3>;
- i W% n; T$ D5 @ end;
% d5 c ~- x. l$ b5 O如果分支比较多，用：
: E$ H' n1 s, R inspect <expression>) |+ {" i) E w3 M9 r& y+ m7 h1 y
when <constant_list> then
9 O/ w7 j& I* u; q( B! c <statement sequence1>;
5 j. j s0 t: E* E! ^( V4 g when <constant_list> then. E- v5 o$ V( ^" Z' a2 |
<statement sequence2>;
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else) s3 k3 I) V2 ?: U: Q
<statement sequence3>;/ y: `. p: P( c2 g
end;
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! y3 k' b* Y/ W1 l4 ^9 n' n2循环语句& N; _" u6 `! Q
(1) from <statement sequence1>+ v3 B# {. A' i' M1 s ~
until <condition> loop4 z) ?/ d' u( S) s r
<statement sequence2>;7 K! E" T8 d* J6 ~+ O
end;) H/ f3 o' O# C, H
(2) while <condition> loop
" {! D9 m, n) @& A6 T; s, a: I/ C' f <statement sequence1>;
( e2 o1 L. P: ]( U7 w" ? end;6 S8 q0 K4 B- D n: b
(3) repeat * R2 v. j% Y+ m2 ?" B
<statement sequence1>;
# k% l+ ]2 X# ` until <condition>;
P* H$ D% \8 \6 u+ a' {8 x5 N (4) for <condition> to <condition> loop) O) }! U O; R4 ~; \$ G! J- {
<statement sequence1>;
6 u# F% ?0 }$ m3 j next;5 r8 k' ?7 a3 n* F1 d* ~ W
3中断语句
! n7 z; B& X1 P% u3 Q( _ waituntil <condition> prio <integer expression>;% `( U9 r7 q' B
+ \: L' ^ L0 H( t
- T# T, y) q% K6 c以上为常用的函数！' }1 R* a' u3 X& ]
还有很多，如有需要我把资料发到你邮箱里 ) D( ^6 D0 t2 G* x I e4 R
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