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发表于 2012-11-13 08:48:12
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1判断语句# c% I( P9 q( A+ `6 n, t
if <condition> then/ w+ }- f; ?9 W) d
<statement sequence1>;
1 k& h2 v' X, b% S elseif <condition> then; r0 ]' l7 _8 h
<statement sequence2>;0 |8 m) E4 y2 c: l3 ?- c
else
, q( r E$ Z5 Z! z6 e <statement sequence3>;9 G5 ~/ P# v5 ~8 a: ~
end;
/ k. i+ a6 q' }# h1 M如果分支比较多，用：4 e4 {6 V" f* ^6 R; Y3 v2 S5 K
inspect <expression>
+ e9 ~) F5 L; x+ j when <constant_list> then$ ~6 m: l( k# ?$ k5 `
<statement sequence1>;8 x/ v, Q2 X/ j! j7 s
when <constant_list> then
% L0 F; n: f7 e2 S# E8 f p! d! j <statement sequence2>;
: R$ X6 T6 @ S! _- |6 N |( i6 } ...
5 O! v @ M& B; ]! @ t Z* A4 T else2 |* U& ?0 h% ^1 t& a! b1 |
<statement sequence3>;6 n5 H7 h, _ J/ b: ~6 H
end;
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) n# N; b0 r7 e" S+ j3 d$ F2循环语句7 [+ V% I) E2 y b& t$ J6 S# C2 m. ]
(1) from <statement sequence1>
: A' ^' L; j' d c0 [: F' C8 B# f0 e until <condition> loop$ \! ~. r5 R& I9 F7 [: X
<statement sequence2>;
7 `, K5 b2 B; j$ x/ g# ~5 ] end;+ ]; d) Z U7 o
(2) while <condition> loop
" s& Z8 S* C$ J <statement sequence1>;0 p- a6 b+ a3 F g) w8 F' }6 [
end;
3 O- m4 }( h* \/ x (3) repeat 9 @4 \4 @4 }; O" V1 @ O7 D
<statement sequence1>;
8 F, K$ x9 ?3 {- l1 g$ v$ D5 W5 Y until <condition>;8 h% }. _+ u) z* o' X
(4) for <condition> to <condition> loop3 D, M, n% a4 f, v1 \
<statement sequence1>;
4 T$ E+ r' y) o next;: V7 s" y+ ^& E8 o
3中断语句
# Q8 T- z" m1 i2 B$ X1 N3 m% U waituntil <condition> prio <integer expression>;! v$ b. A; z7 H+ G- j
: p9 i* G0 s: w
0 v; l, K- \* l0 ~5 k7 R以上为常用的函数！
* S7 @/ m. \/ V; [$ F6 a还有很多，如有需要我把资料发到你邮箱里
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