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发表于 2012-11-13 08:48:12
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1判断语句5 ]) V2 q6 i) v. m2 P, q
if <condition> then
: P" g- s- @, H3 h5 e4 @ <statement sequence1>;
0 p2 N; W( s# A, _, g elseif <condition> then$ G f1 k" C! E7 Z
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
M$ t3 P, _6 |& p$ @ inspect <expression>
0 @5 X& d) `6 p4 y, G0 i when <constant_list> then& v3 I3 {) D: j5 q
<statement sequence1>;* ]. s* ]. Q, ?0 L9 a2 B
when <constant_list> then" ]& w3 |2 k9 T: `6 d3 D+ y! f% h
<statement sequence2>;. F2 E g9 o w" K
...
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<statement sequence3>;
6 r1 }: c8 k6 f7 v# fend;
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d! R5 ~ k7 q1 q: Q; r2循环语句 Y ?- g$ X! F8 I8 `& J2 Q- h6 ]
(1) from <statement sequence1>- ]" U q& e6 ^8 K( W
until <condition> loop4 r8 L3 h2 H: x6 X9 b0 U
<statement sequence2>;( I# \: v" H2 t- j9 ~' y
end;5 ^/ e8 Z# g9 R, T3 M
(2) while <condition> loop
k0 b7 Y+ B7 \ V/ C <statement sequence1>;- _5 @3 Z. j$ ]7 w9 U: Y' N3 K
end;
6 ~& J4 x) {7 G% f (3) repeat
" D3 d* I; C u, ]( Y3 C* t <statement sequence1>;
& m, z. B/ ~7 t3 _; z8 u5 [ until <condition>;; K0 H( h/ b! t4 S
(4) for <condition> to <condition> loop6 W$ h4 S0 }* v5 C
<statement sequence1>;
% V3 O9 [# T" H" Y% N/ d5 E( w next;
* R( h7 ~6 }5 Z3中断语句
' F- Z( k; f- K& K8 t$ x9 { waituntil <condition> prio <integer expression>;! Q/ |) S' E9 x; K6 b* ]2 y
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8 \7 l& Z/ X9 A* L- c3 [: k$ T以上为常用的函数！6 L2 Z2 R1 K5 t+ j/ w8 k
还有很多，如有需要我把资料发到你邮箱里
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