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发表于 2012-11-13 08:48:12
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1判断语句
: }. B& v; V+ e) O if <condition> then
2 m7 \0 p+ @' K9 w' w/ x& f f <statement sequence1>;
. m0 I2 h$ e O; O" Z elseif <condition> then
2 j2 V9 ]3 N A, O0 l p+ [ <statement sequence2>;
0 z0 m. s. T$ \& I8 o f9 L, l( P else
' R0 l3 }: E7 _ u& b3 P o7 Z <statement sequence3>; K! e- w# R; x% d
end;' T5 a8 _$ d) j0 q, L
如果分支比较多，用：* Q/ ~+ v) k4 y9 p |' b
inspect <expression>
8 H0 }+ O3 P0 y when <constant_list> then
7 X( E" T8 S# c: h( r6 J <statement sequence1>;
# {) Q% A2 ~& D3 ^ F7 B when <constant_list> then0 H) S! Z% Q6 W1 B) m
<statement sequence2>;: C) [ J, W( I7 F- m7 N
...
1 L. N) H. c$ b2 q else
+ U1 C0 [1 \) u4 x <statement sequence3>;$ H2 L0 z& v i' _- P& D7 u; I
end;8 m$ i4 s0 I" _+ w
# U* _9 I4 f& B6 H2循环语句
' V* k3 @: P% I0 v! m X (1) from <statement sequence1>
7 r' d7 H8 w. o9 { until <condition> loop
0 K" |0 ^: ^! D( o% { <statement sequence2>;$ b; s$ X5 u6 h: K" U
end;5 {5 N/ k* U1 P5 I! V6 m
(2) while <condition> loop
" s4 [8 s$ L# U* o% R: q <statement sequence1>;9 a1 o3 n2 E1 S# |5 y
end;
( a% s2 q' e O8 k5 Z# z (3) repeat : v2 Z" |' e2 J) n- P% f! Y
<statement sequence1>;
7 s- e& t1 [% p/ L: O2 I" _ until <condition>;: {6 \6 g1 i1 o9 @1 s
(4) for <condition> to <condition> loop( ^9 K: y# Q9 F: p+ H
<statement sequence1>;8 C0 {- X! W0 S0 f
next;
$ [ R" U6 H0 x0 M3中断语句 f& l7 G! A/ H3 J) R
waituntil <condition> prio <integer expression>;) b* B' {6 m) i5 |, D! T7 P
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以上为常用的函数！' ~/ D8 M8 `$ d
还有很多，如有需要我把资料发到你邮箱里 ( T( u# s5 {+ c+ g
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