|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句1 ^3 L" @% j, m
if <condition> then
/ k; H& r3 `, _( k$ b# s <statement sequence1>;
! g! A& `7 j F% ?) U6 o. k! y/ z elseif <condition> then; ?. F8 n" ^! k
<statement sequence2>;7 \1 @8 l% b) s
else . j; s5 j* y/ _
<statement sequence3>;! e) p1 w' Y8 {8 p9 Q8 V
end;
# B# R! `! A1 B7 s' w2 d如果分支比较多，用：
: H. m. m/ k9 i5 ~" H/ f8 w, ^2 `% b4 R inspect <expression>
4 z- L, |3 }0 E0 O when <constant_list> then
/ ~' y+ A# n$ d) t- r) V <statement sequence1>;
5 V0 i* u% D. o8 Q- ?$ o when <constant_list> then& w8 w2 ^; v' R5 A0 X& b
<statement sequence2>;2 \+ v: Y5 K* U4 O, Z
...+ h1 g+ M7 |4 D, a1 D3 _
else+ j$ Z$ Z# v- \0 h% [
<statement sequence3>;
( k) r6 z U# `, o; O2 g* tend;8 g8 B/ p( Z8 E* ]: {0 U" ^% u
# e) r4 I5 e8 ]- {; u! ^
2循环语句9 v; n; v+ h7 s3 f6 e X, q
(1) from <statement sequence1>
2 e5 B2 f% V3 H. w( X until <condition> loop
: \/ t6 {7 N" F <statement sequence2>;' n) G+ N9 g7 E, N5 i
end;( I9 m1 Z' G7 l3 r2 N
(2) while <condition> loop- I* m, k+ U- w2 @
<statement sequence1>;$ g% z& F* F' N
end;& s4 O/ O* Y0 j2 W" \. ]* t
(3) repeat ; P* J1 P! u! z7 n
<statement sequence1>;3 e0 g2 [3 Y1 U) o7 k+ ^
until <condition>;
% W) {( y! ^* R/ K& H; l: g; ]; X (4) for <condition> to <condition> loop- A' F& ^' V' l2 X$ n, \$ ?
<statement sequence1>;. }2 i* `" B/ W9 t8 R: K; U- C
next;. W! G. q4 T, r; d. f) ^/ E
3中断语句
8 t8 X# E5 w. V- L( H9 o, q waituntil <condition> prio <integer expression>;
" o5 s) y M8 B3 P5 z( v! q
7 Y" _5 f# P! ]3 R0 C$ O S, @( P. F8 n8 ^: m) D7 ?; N1 Y/ E
以上为常用的函数！/ W W2 U0 Y9 q: b
还有很多，如有需要我把资料发到你邮箱里 * n" @4 @+ J$ N; n% l* |# s, C/ v
9 m% x, s3 C* c
- e* n' M4 u# f
( A& a1 i1 R; m* E6 h0 d: A
8 s$ Z' l5 \$ W
" O: l6 Y! t2 f: B: { j* ^- S g
e/ S( B" w0 p, Y% w
% N4 ?- N8 H& V3 g' i5 M1 |, }) y% E# O$ e& f; T- D
5 J, N1 Z) V8 Z4 ` |
|
[复制链接]
