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发表于 2012-11-13 08:48:12
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1判断语句
) Q, `4 w4 U9 O1 ?, {" k: Y: y if <condition> then
2 n1 q/ }6 i- U9 F4 _1 p: L <statement sequence1>;
6 [' y* ]) {/ M7 E0 _) @ elseif <condition> then
) S- p# {; D7 d& k0 i# v; j/ z <statement sequence2>;, s5 J7 {$ @: X0 b* }5 j. ]
else ; k6 _' u# Z. ^, B( Q1 F
<statement sequence3>;4 ?" u2 e9 F' f+ @* X5 z+ Y6 p }
end;
* ~& y7 d) j# |如果分支比较多，用：
7 e) e% r3 G+ {# I8 q& j/ ? inspect <expression>
7 ?4 r( ~ A+ s. E0 Y when <constant_list> then1 [, n, H T# ]2 O$ I3 J2 s* V
<statement sequence1>;$ @/ \3 a1 J4 m
when <constant_list> then! I- ?* q, I" Y$ t9 |2 g/ j
<statement sequence2>;6 k; V' {. s1 X9 o1 _
...
5 z& r5 i) Z2 C else. q+ F+ S, v9 N- h
<statement sequence3>;2 @5 ^. q3 b& ^- z: J7 X
end;
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7 n6 T+ g5 O- j2 D/ ^9 v* Y1 u2循环语句
5 ~3 a( q' {. N- M! |* k ^' h7 Q! S4 J (1) from <statement sequence1>
8 C- N. u# {; b2 p! B9 z5 W# r2 L4 f until <condition> loop
% C7 z! D$ ~) g0 x0 p <statement sequence2>;
& ]1 r6 P# T2 j' N3 y- o end;% }& L; Y) {# r2 G6 u
(2) while <condition> loop
' i& Q! P! N3 B2 ^ <statement sequence1>;+ E) H2 Z9 v) M7 Z y0 N2 c, X, `
end; l0 t$ @5 f. c5 D. T+ p8 K
(3) repeat 9 e" ^* p0 `% W9 a8 W. l0 M
<statement sequence1>;
+ e: ]+ Y7 [8 `( A1 e5 }5 l until <condition>;
2 H7 H, Z" D# `( n$ h/ r& i (4) for <condition> to <condition> loop9 e+ m! d5 F, Z) [1 F9 R
<statement sequence1>;! X5 S* v) J4 V( V
next;
4 o$ |: t6 q+ ^' P& y D3中断语句& L+ A3 ^% X `% e! d/ L; @
waituntil <condition> prio <integer expression>;
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以上为常用的函数！' a$ I$ Q6 X3 l. I9 P6 A
还有很多，如有需要我把资料发到你邮箱里
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