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发表于 2012-11-13 08:48:12
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1判断语句4 m0 O' }" h5 f" @, ]
if <condition> then
+ o5 I, V3 I. p! a* m. q <statement sequence1>;
7 u. h4 G) J K elseif <condition> then8 N/ ~9 M. M5 V* j; {- u- V
<statement sequence2>;: u! I% J2 ?1 o) _4 f1 h; X
else
1 h0 F3 F1 e7 ~! |) O! w <statement sequence3>;
( E1 K. A+ t+ u, _* J, b# E end;+ w; J: }: q. S7 S
如果分支比较多，用：7 q. u. `5 T/ E) I( x; N6 U% c
inspect <expression>
1 d& h8 [* \4 f8 ?" W6 a" D when <constant_list> then8 k ^. j6 s% n; o
<statement sequence1>;" K3 |; A1 m. f: b4 j, X% q3 l! J
when <constant_list> then
2 |6 S; ?0 H/ r: |! D2 Q <statement sequence2>;
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else
. L1 j" w6 d1 P( L- y/ K <statement sequence3>;. R4 w; Q1 ^ |- Q$ A4 d+ d
end;
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2循环语句9 F2 s5 A' P8 q( W% Z9 n; f
(1) from <statement sequence1>0 S% x9 e- Y$ f* ?. X% ?8 p8 s# {
until <condition> loop
: E; h+ b1 o' w5 k. y) ] <statement sequence2>;
/ v0 ]0 M+ i$ p* P end;
+ d) @! n3 [+ w2 ^& h3 P" N( U# M (2) while <condition> loop
r+ C7 N Y& {0 I2 _ <statement sequence1>;0 \% l1 `3 K9 L- L. ?
end; P) T4 N3 o! s- u9 W
(3) repeat
9 b, l! O! a4 F <statement sequence1>;
; G1 s% A/ p- i( U; C& T until <condition>;$ \0 ]$ M# Z, ~8 x' z* y
(4) for <condition> to <condition> loop
$ A! o8 |4 }: L: Q) J/ l) L+ u2 g9 E <statement sequence1>;4 \6 S+ G9 _! |: A
next;2 Z# s3 n) Y: D) f% ?6 F* y
3中断语句. V& G8 a9 e }
waituntil <condition> prio <integer expression>;; ~9 @. F, e1 T
% F2 i! o O. p, v# v
5 ~3 M1 c7 j* f& ~- C以上为常用的函数！
; R* M" h7 A1 Q5 |7 i4 R, d4 F还有很多，如有需要我把资料发到你邮箱里 4 h1 j1 t; L0 J. d
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