|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
; g$ {' b) u- b: _& a' l1 d( R, K if <condition> then S! d3 m- Q) f7 i" S
<statement sequence1>;
- y1 w( x1 a! K! h6 m' v6 z elseif <condition> then$ C! ^# G) v. r F D
<statement sequence2>;, P& K9 f( u a9 v' s& J" `
else
9 s9 z. l2 c8 m' ?8 ~ <statement sequence3>;6 W7 {, E% u7 M6 T( D
end;
# e3 x; f5 ^. _6 f如果分支比较多，用：
) ^' z( l% P) h! @6 W7 a. A' k) Y inspect <expression>
3 ?0 c( T7 [6 o o# N* j* S, j when <constant_list> then, Y3 _+ y+ z# Q' W
<statement sequence1>;
- J2 ]: [5 X- [7 d& G6 B when <constant_list> then! V5 B* T4 I/ l
<statement sequence2>;, K+ e4 z4 e3 E, C A, G
...
* K: n. o5 \) M+ Q2 k else
4 y, U# l, J4 U <statement sequence3>;
. G/ G1 y5 _* C: ?$ i) n# mend;
% a3 P3 _! j U
' i7 ~* r3 j! R' [2循环语句
& [$ c" w9 t0 [( t% d) M8 S9 f8 v (1) from <statement sequence1>, y- ?# y1 b \
until <condition> loop
% N) ^5 N8 i+ a <statement sequence2>;. e& Q3 k2 o% s3 {
end;
" h+ n# W8 m4 f- A (2) while <condition> loop/ h3 r" u0 I; B) {( T
<statement sequence1>;* V* D+ R4 ~3 V5 f) o- M3 d! b
end;
$ K3 q2 Z7 K, _7 Z. m. Z (3) repeat
! i2 z/ o* v% {/ T3 [ <statement sequence1>;+ c+ }: G5 K" m- U* f
until <condition>;
* v& n9 z" R3 P (4) for <condition> to <condition> loop
% h2 L) A! A. l( ~6 P <statement sequence1>;
4 ^" t* j+ Q, e% l next;6 M" C+ J7 u6 p5 ^
3中断语句
. W! u! o. S- @2 _+ \! o/ r waituntil <condition> prio <integer expression>;
- a j/ v! \" Z' J
6 \7 V+ R2 f" Q, G, \$ B8 n) Z! F5 ]4 _
以上为常用的函数！
, C: }3 U5 v9 y# Y8 D7 G还有很多，如有需要我把资料发到你邮箱里 ; i# u4 ^, o6 \: ^% m
* T7 e, B' Z5 ?4 p! u2 J
1 ?- M! U) u: c4 Q6 B5 F
) C; \6 f. A: X) S1 I) x9 C: y ; _. `9 D2 C/ G# ]# O
6 o- A/ X2 `& R; x( \# W$ _) {
: `/ [2 S5 p" S2 G8 c% W
3 y+ {/ U7 M5 @9 d7 q M2 X8 H6 h' ^" A# [; |0 O6 G9 N
( U) b+ ^$ i' T. @
! ^. V" n" e* W% [6 l
|
|
[复制链接]
