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发表于 2012-11-13 08:48:12
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1判断语句
% v1 c0 R3 T5 b% t5 z if <condition> then
8 d' n3 R' d; b) T$ u5 h <statement sequence1>;
4 s, {) A6 [4 r* w1 a elseif <condition> then
: z+ r4 Z& d8 q <statement sequence2>;
% y& ?, Z5 ^$ W) y else # u7 R! P7 C+ q7 q+ \4 d( \8 v; P
<statement sequence3>;
" a. c7 w; E8 N5 H8 @) ] end;
O+ A( j! B" ?( ~如果分支比较多，用：
- ]: W: L- A) M! s; K6 y! @ inspect <expression> r+ [7 f: S7 {6 c( k
when <constant_list> then7 A: ]8 z" ^) d |
<statement sequence1>;% l) M8 L7 E3 |# b
when <constant_list> then
! I& G7 S7 a# L8 F9 P( a' d: j <statement sequence2>;' g$ P0 D* [3 {7 p
...
" \0 a5 e0 G+ @9 m3 E4 G3 J2 O else
% P. z( O/ E# c3 t+ [$ z6 p I6 o <statement sequence3>;$ [! K4 ~# g# c0 A9 |- S9 t2 P5 t
end;
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" g& r! J; S" Z# g: F2循环语句2 m5 W& o Z: ~2 c
(1) from <statement sequence1>
2 b$ u$ h8 ]( \+ H: L( k$ p until <condition> loop
1 Y0 x" s$ E' n8 `, C2 b* j <statement sequence2>;
0 G9 Y6 i' B0 c; l& ?4 y E2 M end;" b6 F& Q( R5 g) b
(2) while <condition> loop. i( @5 e! k) K2 f
<statement sequence1>;1 K$ D6 A e" {4 S" Z' b# c3 w
end;
: Z' W$ N9 f% T* t5 Z& l1 | (3) repeat
- W3 A$ G% p- A* Y. m <statement sequence1>;
( n0 t. z+ P# g+ O5 G7 [ until <condition>;! f# `8 J; |) O# f: Z. `2 S. s
(4) for <condition> to <condition> loop
% N. o+ T4 G( B. @5 D* U7 K( I0 k <statement sequence1>;
6 Z4 @9 ^3 |4 u5 ~) F! c next;/ B& ]; g9 p1 Y1 i
3中断语句& h9 a1 K: f; z( N8 d
waituntil <condition> prio <integer expression>;
; i* u1 _4 \8 z
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' h% d% f' n1 h" J+ H以上为常用的函数！/ b5 D! {9 I1 h
还有很多，如有需要我把资料发到你邮箱里
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