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发表于 2012-11-13 08:48:12
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1判断语句& C. z" C5 r% f) w( C
if <condition> then
/ i5 v2 M1 A+ {" i% f8 l <statement sequence1>;
4 ]: j- `' l! t7 p( o; I1 Y elseif <condition> then6 r& Z& B1 i; Q9 S3 C8 q
<statement sequence2>;5 N! s% s& n2 t! u3 Y6 K
else . L3 [7 }& p( Z8 Y
<statement sequence3>;; }8 P- d; p4 U* ]# V- Z- b' t- i
end;
0 h( ~0 _2 _, W" |如果分支比较多，用：
2 H6 z2 [! e0 X3 S9 v6 I inspect <expression>
- \: l+ u, y- O5 {5 f% R G# Q when <constant_list> then
+ `7 l. f8 ^) @0 x. W: V3 _ <statement sequence1>;" r% ]8 q( B5 A
when <constant_list> then- r8 s: F6 @ @" f" i" ?' o
<statement sequence2>;& l' L; X$ X$ H% B( k' B1 K
...
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<statement sequence3>;
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/ ?, ?9 W5 `9 h3 v2循环语句
3 ?' O* n! {, r, b8 @ (1) from <statement sequence1>( p6 d9 d% d1 V
until <condition> loop% ]' ~! j: _3 Y F$ M- O
<statement sequence2>;, A2 x; b& @* E
end;( R! Y; Q7 q, ?0 `7 j) j
(2) while <condition> loop
4 G; {) z p) R! \# S' y9 ] <statement sequence1>;/ G/ X6 S1 _' n& J& q
end;
7 Z6 U! K$ y# R/ u% r" C (3) repeat
% Z+ ]3 Z8 f: q6 b: n7 _ <statement sequence1>;
( M8 j8 f2 y5 Q. r" }, _" ] until <condition>;
4 x2 Y: L& `* `* ?' _6 b0 [ (4) for <condition> to <condition> loop
\! ?' V, \# D! C) k <statement sequence1>;+ K( e! u9 Z! d! a$ ~0 _8 b0 y! L
next;
0 u0 s$ N- i/ p; M% V! {) l* [3中断语句% {0 d+ D$ w! f8 G T
waituntil <condition> prio <integer expression>;) L; ` O& d4 k
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以上为常用的函数！
/ [6 Y) B( R- V, B9 |/ I还有很多，如有需要我把资料发到你邮箱里
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