|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
: H$ m9 _; v, p! N& F. l- t if <condition> then
) P4 L& v0 n* @8 o" w <statement sequence1>;
$ W( Y* { a6 _; |6 E elseif <condition> then
6 s- T7 `, _5 t <statement sequence2>;
/ Q. n5 N) B& d% m3 J& j! E else
' _: _- N( s/ `* j0 [, r7 d <statement sequence3>;* X: b7 j! z$ b$ i2 q; Y
end;. |# N* p# b( @ @0 A H
如果分支比较多，用：
! Q; X1 g- ~1 C5 [ inspect <expression>
( y3 T/ T* g! b0 i7 L5 G. j' { when <constant_list> then# a1 s$ O' W+ z2 F8 Z8 I, T
<statement sequence1>;
/ J% I& J4 o; M, V when <constant_list> then
( {. g3 `8 { m5 G <statement sequence2>;9 w2 {3 W5 K: ^, t1 l# G8 i% @
...3 h+ R1 w7 k# g+ ^$ X$ O' y
else" x& H! t- ^7 m7 Q4 n# O
<statement sequence3>;# ]# f, r* V1 \1 F
end;
2 Q: v% g" E t4 R3 i
- O% Y% k6 L: R# V2循环语句
2 y7 w/ M( T R P+ h: s6 | (1) from <statement sequence1>/ X# Q# L" N7 u5 {: n" l
until <condition> loop4 r+ |' |6 n" U$ _% x6 S/ w' U
<statement sequence2>;" S: I$ G K+ J2 D) f
end;8 H; L( H. y) }+ c
(2) while <condition> loop% b8 k1 r! W. W6 O/ X
<statement sequence1>;
, I1 w; D$ \0 { end;
6 V, e* d$ E2 C- N! v, ], ], U (3) repeat - f, `& x/ L9 m- O
<statement sequence1>;
* {, o& F$ ~/ z- E$ J until <condition>;- |: K+ O! Z# F, ^
(4) for <condition> to <condition> loop4 E2 A. m. R8 G9 h( ~4 J6 x0 ]
<statement sequence1>;, V! F; H: P' m# T5 P* g
next;
" B( `- ^" x7 m+ @& O3中断语句
0 q+ x8 c/ Y* c; S3 D5 Y/ |/ ~ waituntil <condition> prio <integer expression>;
& {/ D5 ^. p# o0 {# D; c. v( Q# t( I. y
; p$ v, ]4 C1 M
以上为常用的函数！
1 b! z- |& F# c' j1 d8 E还有很多，如有需要我把资料发到你邮箱里 & v" P# h1 A9 [
K- k# t$ h% G9 P0 N% n
4 y6 N# D7 f& j* R f& s
# l( Z& u) T' l" W# c# A/ {. c1 @ - ~" w0 k# G7 O
. R1 _7 r/ {7 n k' x% _0 W6 @
' H7 }3 Q% m8 o
; |5 k, p4 G) _2 s9 d/ v$ R
( D" m: `0 w0 @& ~. P: A W1 A6 n3 D; B
/ E! g" [/ }1 t6 T. i$ v
|
|
[复制链接]
