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发表于 2012-11-13 08:48:12
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1判断语句
7 w7 f# N8 }2 q6 V* m if <condition> then" ^/ u G. }* P& R4 b1 b
<statement sequence1>;
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; ^& ^$ [( K% ~% G0 I <statement sequence2>;
" Q: M. }2 F& U. N4 k+ d2 O else
( q0 _& `& P2 R5 h4 w <statement sequence3>;" v( K: i& ]# u7 k+ l( h
end;7 r; h- T: E! T9 d+ {, H! X
如果分支比较多，用：: S6 @7 w/ e; H
inspect <expression>
q, f& \% c c2 r( |) ~2 @ when <constant_list> then) V+ Y9 F+ a% P, C m
<statement sequence1>;1 _( ~% g6 G( h% w" u
when <constant_list> then1 H& B. ]" P2 I' w1 p o. O
<statement sequence2>;- w, ~3 d: H) m
...
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<statement sequence3>;) r4 |4 P; W$ r8 f$ x, @
end;
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& Q, N( M2 H; O" T4 {2循环语句
. V+ u- f6 i; q) U% ~2 T (1) from <statement sequence1>; N* l& ]. O* N) C a, F( @% i
until <condition> loop
6 u) p5 ?" P8 }/ S8 i: ~. i <statement sequence2>;" i/ b+ {6 D' M* |/ w# J
end;9 Q9 U% l3 X/ ]& k5 O
(2) while <condition> loop
/ N4 {2 S+ M3 @0 `& g; p, x <statement sequence1>;: h, `2 m: D! R& d
end;
, c: w& `1 f- x7 Z% x (3) repeat 8 X" u3 O5 d. p$ Q
<statement sequence1>;
1 G7 m6 A$ _4 ?) P. O }5 Y! b until <condition>;
% n: @8 d' k; Z2 k- m( Z (4) for <condition> to <condition> loop+ E5 u( p. X: c6 X
<statement sequence1>;
6 q( A3 p1 B* e& Y next;
5 f# O G# M9 ]- l& c" A3中断语句' D+ G0 C4 L2 K, v! b7 O
waituntil <condition> prio <integer expression>;2 r1 t6 j2 O! ?
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$ W4 W g8 D* x$ r1 _4 l- O以上为常用的函数！5 E v. R9 o/ H8 X# b
还有很多，如有需要我把资料发到你邮箱里 / q: y; K" _: y" |- Y
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