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发表于 2012-11-13 08:48:12
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1判断语句
: b9 q `9 `+ k0 C- @ g0 _/ f" r4 B if <condition> then- F. F Y5 x( K
<statement sequence1>;
& ~; N2 _9 U2 |# v5 W elseif <condition> then1 @) H# C- K. g- Y+ p; `% O* w
<statement sequence2>;& p1 i" E/ @* i) j: r E( R9 n
else / j% S& k, }5 m1 r% X4 d- c3 {
<statement sequence3>;7 m7 V$ T4 A+ t: s) i9 v
end;9 Y% E# _7 s5 i1 L5 l
如果分支比较多，用：1 l* O' F; h$ c2 f6 Q/ p
inspect <expression>7 _0 B" u2 @- `
when <constant_list> then* t5 b- ?7 p0 V; I7 V, ]8 R
<statement sequence1>;& v% q Y1 N6 h
when <constant_list> then
* T% T" j) a: \/ g5 a! x% l <statement sequence2>;
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else* E. t, x6 _ \; }3 I) q/ `# `
<statement sequence3>;* B: z5 h7 ~: z. M/ F6 }
end;
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2循环语句: v1 ^7 U4 T) R, b7 K. K
(1) from <statement sequence1>. q! y- K9 A b! F3 z* q: {( e
until <condition> loop6 l: V3 t3 a2 L0 i$ f
<statement sequence2>;2 I2 j4 X1 Q; O& y( w
end;! r2 O8 n0 x& m4 [# s6 ]
(2) while <condition> loop- A2 t- D7 d6 w. u |1 a
<statement sequence1>;
5 P, t+ v) `& l2 A7 q end;" v! v% {, H2 y
(3) repeat
8 z0 L5 _3 Q/ O+ M- o <statement sequence1>;
) X8 o9 ^+ |5 c0 s- f- R. ?. i# D until <condition>;
3 q: z# N' P( e (4) for <condition> to <condition> loop; ~2 g6 F* R i% `
<statement sequence1>;
$ `# D4 O* N A next;
5 E& `% U1 s, q3中断语句
5 g6 n0 n5 y( [: n waituntil <condition> prio <integer expression>;
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以上为常用的函数！
' }/ f; \ R( [! C还有很多，如有需要我把资料发到你邮箱里
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