|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
: Z/ m3 S; V9 s. A' J+ N! S3 _; ?$ `# K if <condition> then4 V& i4 L6 I1 H4 H/ e7 p
<statement sequence1>;/ F1 V- G8 r, Y. O! g+ T, G5 T
elseif <condition> then
# T* T3 D6 M+ ?* ?8 \; Q y7 J <statement sequence2>;1 Z' u# _" \9 X- V" P; {9 e# x, p
else ) M2 Q0 {- _1 N3 h4 _; z
<statement sequence3>;
+ X) V9 j0 [; g% y end;2 x) |1 O, {$ d+ j+ y. U, e
如果分支比较多,用:
6 y9 x8 q+ I$ t9 ] inspect <expression>7 D/ |" I5 ^( j% [( v6 B* Y
when <constant_list> then9 {( v, E4 @! |
<statement sequence1>;
7 G4 F4 H- J' w" T9 |; F& Q when <constant_list> then0 k |: P) H U G
<statement sequence2>;/ W$ I0 Q# `) k% V& Y6 ?4 D7 l5 v: @
...
9 P* ?8 L" W: A- m! P, B& } else
$ \& q. [9 b( |6 n/ X <statement sequence3>;
6 d; g+ O' s7 h/ u- t; \end;( d: a' s& p8 K8 R% {
' U9 ]! e: }0 n/ x
2循环语句: v; @5 D$ }) a- H1 i& W, k
(1) from <statement sequence1>
# g+ \1 y( O3 J) P! f until <condition> loop
! l/ t( M& ^) \0 S/ { <statement sequence2>;
: u! N3 a: s1 A( R2 O end;
/ i+ V- O/ o% g (2) while <condition> loop
9 y& L& f, }) @' `: j <statement sequence1>;
: ^$ }/ B4 O U end;6 N' j' F7 b6 n% e( Q& `% I
(3) repeat
/ @$ w- j+ \8 A9 {/ J. f* V# A% |' | <statement sequence1>;" G& M4 d7 M: ]6 ?( e. E
until <condition>;
$ W* {0 |6 u! i, j (4) for <condition> to <condition> loop6 C; z! o# E! P
<statement sequence1>;( J, j# F& A7 q8 e5 H) ?) X
next;
$ t# {, b6 ^1 w; e4 d1 B; a$ v1 B3中断语句7 m: M1 A7 M+ D* `
waituntil <condition> prio <integer expression>;
7 S' Q4 F- m" b. o- r" v
6 M) Z# v$ X9 K& h, o7 k1 F# X: t# d4 c8 s6 B L
以上为常用的函数!0 I1 e' E3 h2 K. o0 I
还有很多,如有需要我把资料发到你邮箱里 7 ]+ K* i+ r5 T0 g
& E C- M: C, d
- l& f! f+ g' X: y% n {
* e |& M0 |6 d% Q4 q: `8 j2 R % ~2 a% {6 n! Q. `4 F! Z+ j
9 c/ M9 \/ @3 ~
2 f/ P r0 t$ R& s$ e/ {9 H# v5 Z3 A3 s ]* s4 [
& G9 Q' u6 T5 w4 c% \1 @ d2 i6 G/ v* A& a- H
/ q% l: i- b+ h6 L7 {+ @ |
|