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发表于 2012-11-13 08:48:12
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1判断语句$ P' J+ q& B# G" t( @6 }9 |
if <condition> then3 F( R) i! \) g' g) U1 r7 R
<statement sequence1>;
# ~# y+ Y' Q& i elseif <condition> then
2 k2 z6 Q' Z& N! u6 h6 f! D& { <statement sequence2>;
3 W1 h _& }* p+ X( K! y2 @5 G else 0 t" ?: S6 X o5 |* _& |
<statement sequence3>;
- i* {' g0 j) t7 X M end;" r" f- _. O3 Z! u4 u, m
如果分支比较多，用：
% E6 x" Y& O6 K$ n# ^2 b4 Q* d. R; \ inspect <expression>
4 w7 X: a* R0 W/ d v when <constant_list> then$ X* w/ M% z+ Y# W' F
<statement sequence1>;- o9 ^5 R) o5 u- Q/ K6 |
when <constant_list> then/ y/ s2 F9 ]% {
<statement sequence2>;7 i4 ]7 } O+ M; q
...
7 w$ y% u. r" N* K else
$ u$ h1 h' n2 W8 X7 L <statement sequence3>;2 W- c% T+ o1 k: y, g
end;
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: }( E( A0 `! g% z0 l2循环语句6 v+ g: V, @5 n
(1) from <statement sequence1>
; V& `3 i1 M/ d2 e3 k until <condition> loop
6 b5 K& }$ b4 }( M l4 a <statement sequence2>;
, | A/ L+ }& }! ?5 m0 ~8 ?8 p end;
! a4 c# ?+ a1 \. D+ v' R I, n- ` (2) while <condition> loop
H" D' l! M# P8 r <statement sequence1>;
) w q5 n; k1 @( |7 Q3 @ end;7 @9 O5 Z: P; x7 o7 `
(3) repeat
+ H( [3 i ]% h7 _6 o) V6 R <statement sequence1>;
9 R9 d; P! q" N; x until <condition>;
4 n) A- P! F6 R( i0 T9 s (4) for <condition> to <condition> loop
. s, c3 n& b7 S0 O0 S# h <statement sequence1>;7 E8 P4 W4 y: Z$ N+ W8 T
next;
; V. }, d/ J% Y) ?6 P8 h7 y% ^3中断语句, a7 ]. o; J% Z3 f: Z
waituntil <condition> prio <integer expression>;
# C" ]( v) Y* M5 \, V) X# _) d8 p/ n5 x
5 R6 \! r9 B! g8 S- G: |8 n5 n* z/ c9 {以上为常用的函数！( [& L6 S) a9 X0 n: T" K4 i: N
还有很多，如有需要我把资料发到你邮箱里 & Z! Q3 D7 g6 h
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