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发表于 2012-11-13 08:48:12
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1判断语句
3 z* @' Y( o" I7 {$ ^6 H if <condition> then f+ Q7 j4 h4 o1 I) y5 P
<statement sequence1>;% }$ ?$ a! T( p# }0 N5 V- Q' @
elseif <condition> then# z1 j9 h# H# H6 n1 m* i
<statement sequence2>;
+ U: @' p1 O+ ?- i9 T else
" G8 w) W! h+ y" F <statement sequence3>;6 v0 f; U0 H# L: B" h( l8 @
end;6 g1 B# @6 x: X- e% c
如果分支比较多，用：' ?% r7 v4 ], ^- N, Z8 I
inspect <expression>( T) ~' U- ~' \3 `; ~+ @" T2 a
when <constant_list> then5 V8 r- q3 |9 b" T6 `& U
<statement sequence1>;
3 |/ a" P# `; g& s7 K when <constant_list> then
) Q- h; j0 R5 `8 \8 L4 W" y <statement sequence2>;; X) D: i& y% `5 w$ n7 R7 U- {
... i @% O9 N* ?- {$ Z& ]7 S
else4 I, H" v: y/ N" x" i+ {
<statement sequence3>;
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0 [# I- w) H+ A$ l! W# k: \& N" C/ {2循环语句
: Y9 U- k# l: E* @- |, Z. [ (1) from <statement sequence1>
" B; l& Z* d: ~% D! v5 {" i until <condition> loop
; N+ { y" r% r0 j <statement sequence2>;+ S8 H7 M3 Q. ~. Z: m
end;
- @9 h* {) x8 _0 K( @( C (2) while <condition> loop
9 D# L( j+ o- a' T5 c <statement sequence1>;2 H8 n% E% I% n4 W: |3 J8 J
end;
0 c* Q" u8 _" M) ^1 y) h+ u (3) repeat
7 \0 D4 B3 ^5 z0 t( x <statement sequence1>;$ q" N& L) L: n" z
until <condition>;9 n. Z8 V# z3 c$ Z) I. i8 S. }3 a
(4) for <condition> to <condition> loop
. j$ |; s3 V N/ v+ | <statement sequence1>;4 ~+ [7 _; A0 s, z, p
next;
. E3 w! s- y6 p4 G2 O! x- v3中断语句
- R$ i$ s& P O% S% i waituntil <condition> prio <integer expression>;
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以上为常用的函数！* o3 g, K( d) o' G2 Q
还有很多，如有需要我把资料发到你邮箱里 ( E: ?3 _' f( s
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