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发表于 2012-11-13 08:48:12
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1判断语句
: {- t3 X4 q3 a( z if <condition> then
+ t/ K( [4 Y8 Z3 ~$ z% ` <statement sequence1>;
% I: h5 u5 c, o9 @, M elseif <condition> then" Z% l- c# e4 s6 {- m
<statement sequence2>;. c/ N* G n" M5 g2 o
else # o. m* g* ~. u) Y; }1 \' a6 \# @
<statement sequence3>;0 d0 g* | D; b d
end;' [; m: c8 m4 t9 V- J* t
如果分支比较多，用：; E# a+ k% c) J! R1 o* U
inspect <expression>
+ @) Z6 e- S7 }9 [7 ?" N when <constant_list> then4 t9 C! X% U* J! b
<statement sequence1>;4 C$ {- D Y7 s3 X2 d+ m
when <constant_list> then
8 u1 ~$ y( m6 z5 r, y <statement sequence2>;. z) \) T# S( V; M9 @2 _5 c
...0 Y% b6 Q+ A$ X- M0 S
else3 G/ \0 H/ V* W2 O# c$ T$ r q
<statement sequence3>;
/ f6 k1 D5 m! Q% S' s" Fend;5 [$ e7 k& [% u0 t
* m" r) ]4 {) S! P0 n& M& F2循环语句, e- E! X. r( I" f( q$ c
(1) from <statement sequence1>! _- e" S, X1 a. R" B8 ?5 B
until <condition> loop+ |+ m) I$ m! v; ^
<statement sequence2>;$ s6 j; p5 l. o
end;6 r' Z9 X& g8 X- T8 h
(2) while <condition> loop
" V! J$ ]% p% K$ x" X9 b <statement sequence1>;
8 c- W, g- S9 }# r# A3 _6 t$ I end;% R k& n, B k" n7 J
(3) repeat ; O0 J Y9 Q& K/ K3 W* s
<statement sequence1>;2 S' q. U! `! Z) J* A
until <condition>;/ R2 g/ E9 }( `' V5 u: O
(4) for <condition> to <condition> loop
& h* \( i% H, t. l7 _" K3 { <statement sequence1>;
$ d% Q; t+ W; a2 p9 I next;8 x' }$ C1 k/ i' f3 {
3中断语句
7 p3 B9 u. h. T2 j d+ H waituntil <condition> prio <integer expression>;
! O; f1 d" g$ ?. W+ s6 Z+ C' S1 j+ e
: H& F# U5 a. J4 W9 P6 e+ S以上为常用的函数！
$ F# N- |- Q2 M d- \9 }+ {/ e还有很多，如有需要我把资料发到你邮箱里 4 o* M [, O( ?6 H# _% y
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