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发表于 2012-11-13 08:48:12
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1判断语句1 R" z" H' M8 ^# _! ^
if <condition> then9 x u& D( t1 ]; j
<statement sequence1>;' |% L3 q! o6 i4 O' |' ]/ s7 ]' Y
elseif <condition> then1 }4 {, e, R, ^0 J/ {0 t
<statement sequence2>;6 O$ x: y2 h( I: f0 b
else
( S1 v/ ~/ `! W: P& S <statement sequence3>;+ `0 M* n3 G* q8 i+ s! h. s( j
end;+ ^: J# F/ M+ K( w M! [) M" U% {: W( e
如果分支比较多，用：
0 b6 n+ S2 Q9 `4 c/ N+ Z' J inspect <expression>
& E. G: m8 V8 e when <constant_list> then
% e4 y; n3 ~1 j3 r- c9 h9 p3 v( w7 | <statement sequence1>;9 F0 s" P& o* q! Z
when <constant_list> then
! Y' K% j/ O4 o0 \, l4 e* H" U1 ~ <statement sequence2>;0 {: i6 e! p' B2 D) L
...
- P# A% L' ]* B3 F else
; _; \' H: k2 t <statement sequence3>;, r: s h8 `: V! s e# J- D! o/ X4 w
end;
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( a2 F( x+ i1 h$ p. E9 _/ X% Q f2循环语句& u# ?5 g, o% N' M
(1) from <statement sequence1>, g5 F0 x8 ?6 L/ c
until <condition> loop
( |8 l! L( I S% z8 C! T <statement sequence2>;: Q4 e( t0 [. B0 I3 X6 S. e
end;
d5 B. f* P3 F" z! l (2) while <condition> loop" h6 v+ }, u1 W E; W: M# |
<statement sequence1>;
/ L0 ~) a D& Z, J. z5 q2 a0 ? end;* D" A3 S( P- I# J7 v
(3) repeat
$ k$ J" }5 D* ?) d$ V8 h0 U <statement sequence1>; W" w- {7 D( G
until <condition>;
& N1 o s8 d3 ^1 C4 v, [+ g (4) for <condition> to <condition> loop5 [7 X0 n: `+ ~( u+ F
<statement sequence1>;; z# Y, X+ O( B
next;
, `0 |# f6 e6 f! v, ^1 i3中断语句( F: _* u2 @4 N/ s( u9 H
waituntil <condition> prio <integer expression>;
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以上为常用的函数！; d) C4 ~% T+ E, k* b. L0 S: u# r
还有很多，如有需要我把资料发到你邮箱里 ! X7 Q1 m/ ^1 m7 X- K* o4 G
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