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发表于 2012-11-13 08:48:12
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1判断语句
! }5 K2 z' Q$ O# B6 T% V- e9 X if <condition> then
- S; z" l4 [5 W0 T9 Q* u <statement sequence1>;
/ j$ \2 t, x5 ^% }# C# Z elseif <condition> then
& P9 z! {* s8 h( @ <statement sequence2>;
; x' u, x# }; E5 ]% { else
* A. r1 P# n% Y# p <statement sequence3>;
, U Z9 g4 E: M' \; ]- Y2 M end;! e4 x. p6 [! |% Z& ?: h
如果分支比较多，用：
' H5 H2 Y+ v* t" \$ h& q' l/ x) u! G+ R inspect <expression>( Y4 |( _6 f. M5 _- O7 |: x
when <constant_list> then4 v- t% d- Z% |/ z4 R
<statement sequence1>;- t. j9 J1 Y* q, ?3 I
when <constant_list> then
2 D) K) `; u* [ <statement sequence2>;$ i% p" R0 O' e! @" i
...6 [# |& i6 b4 | ^
else
/ b. X" x1 P/ y4 D- x <statement sequence3>; g- G Q0 g. s% _, ~" q
end;$ _, j& ^% Z$ {/ H( |7 Q
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2循环语句
0 ]6 ?% [+ Q" x! R4 v, l o; h2 F% Y (1) from <statement sequence1>* n) s$ }+ u) F7 a2 @
until <condition> loop
6 o* ]0 g% M3 P( h) l* b <statement sequence2>;
- a5 `% ^( p, [ Z end;
* m* U& L' c! L& b (2) while <condition> loop+ c6 I0 r! Z0 n! R$ `
<statement sequence1>;9 n$ U1 n% s f! N0 V% |* K) n
end;
% P8 C$ J n# y; i" M9 w0 |% s F (3) repeat
4 ^% K D, j2 z$ [% F, ^& G3 e R4 u <statement sequence1>;
" L) T$ y, w: p2 V until <condition>;
c7 T( M+ L' r (4) for <condition> to <condition> loop# o7 I! D$ W, \! y2 F" V
<statement sequence1>;
9 c* Y2 a" g( S! l! ~ next;2 r) G# ^" J2 {
3中断语句
% r7 g* p) S ~- I' \ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
7 I# G# R% s- a7 S2 X还有很多，如有需要我把资料发到你邮箱里 ; y! D4 C: ~ n, b+ `( w C- [
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