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发表于 2012-11-13 08:48:12
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1判断语句/ X5 w4 L. s! Y* h7 Z
if <condition> then) `; O- b# o0 b" @- z$ Y! Y
<statement sequence1>;
! l0 b, m& H5 u1 X7 s elseif <condition> then
0 R! L. n/ h- L c <statement sequence2>;3 T: k- s) o' F* ~9 Q7 q
else
& _0 g; p9 n0 `# _ <statement sequence3>;
/ F3 I2 Y8 v/ p" G: T end;
) Y+ V2 [! A: m8 |( m如果分支比较多，用：# D* m# ?, Z0 J8 y6 U
inspect <expression># p _" n- K! r9 J, j
when <constant_list> then
6 U2 w! E% P$ V3 H. K <statement sequence1>;
2 T2 j t8 C8 R+ j1 ~4 w- e when <constant_list> then5 M* T) [3 B" L1 {+ z* r
<statement sequence2>;
% G( \4 N% |, m- L ...
- e: Y& J: }6 P7 r5 _* s9 r else
) C" ]8 t; [; {. R <statement sequence3>;( l9 a% |$ ?: I! K3 n
end;
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2循环语句& D1 V( r1 \4 T0 w8 @$ U7 B
(1) from <statement sequence1>; c$ T# R$ B' j* m; o/ L; g
until <condition> loop
7 f4 w0 T0 F7 F" z. b <statement sequence2>;7 q, `0 S/ C) y
end;
, ~0 N% q0 m, H" D8 J. [ (2) while <condition> loop; v& c1 i* i. `8 W* I
<statement sequence1>;
' Z# h8 r6 d# L+ Q1 n end;$ t( t7 e* u$ ]& E9 @7 [3 s
(3) repeat % S, k+ D$ n: w6 w' ~
<statement sequence1>;
! L8 b$ F) z" s8 W0 t/ N9 A until <condition>;+ b" X" n8 Y" ]3 J X* T$ ?
(4) for <condition> to <condition> loop. a+ Z7 k W4 E+ a
<statement sequence1>;
6 e }( }$ L+ a1 S0 _ next;
7 }0 M2 H9 l- h3 U' ~3中断语句
& Z1 W7 y& G% f4 m$ J waituntil <condition> prio <integer expression>;
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以上为常用的函数！1 ]. b7 F/ ~8 Z, d
还有很多，如有需要我把资料发到你邮箱里 8 j9 o5 L7 N. { `
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