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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
* n" H" {1 I ?4 G) I if <condition> then; X7 R& E9 ]) ~$ U6 ?& @
<statement sequence1>;: {1 c8 }. J& q7 }3 P# Q- [ l
elseif <condition> then, s0 ~4 ^7 Z6 f) A4 K, w
<statement sequence2>;% k* \0 c) b. e' M6 U4 z
else ^2 M& h/ D+ d: g5 {3 V
<statement sequence3>;% |4 T- V. H* g0 f3 s* j; R" v
end;9 d2 Z. r. b# M
如果分支比较多，用：
$ ~, e3 E! J$ ]/ P/ ~" r6 G inspect <expression>
! y# q8 p- x3 p when <constant_list> then
2 ^- n! S2 {# e1 ^/ { <statement sequence1>;3 }$ \3 ~: N5 l( p& T, _8 \& O
when <constant_list> then1 M6 J6 Y; ?! H5 m$ |( ?+ A
<statement sequence2>;; \# _" c: B) `: l) |, @
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else
; D9 ~5 w0 T; _/ d( C" e. v <statement sequence3>;( q% _: [ E( ^; t8 d
end;& p- c) |0 ?* z, E
$ U: _0 i# v' j/ ]3 w- t" s2循环语句
. G* W+ O; ?7 V! b (1) from <statement sequence1>
9 y7 q/ h4 F$ G until <condition> loop
+ S0 s( `% d |* s <statement sequence2>;; ]3 f7 ]0 D/ K7 X
end;
L5 u$ o, z- G (2) while <condition> loop
# C5 Q% W! j1 G% T! K <statement sequence1>;
$ V0 g) i) l' z8 j- \ end;! P/ j2 E9 d8 ~5 `
(3) repeat , |7 @% E+ W) a. r5 B
<statement sequence1>;
0 A$ X0 i2 ]. L9 i8 M) a5 m- O4 y. F until <condition>;
z, \0 o" O Y3 _4 Y$ R+ I (4) for <condition> to <condition> loop
8 y6 s U2 q. ^' r <statement sequence1>;; A6 l- k' z/ J6 I$ Z' E i
next;& X/ }- |* j' ~# I3 s
3中断语句
$ u0 A4 H8 `" Y1 d) T waituntil <condition> prio <integer expression>;8 \2 Q5 E1 D( D6 k* A. v# K
, _* S2 p3 h3 O) H
, W; {, H5 \; g& z( ?* @0 N以上为常用的函数！
/ r9 G2 }8 W8 C( K0 p9 s& j* l还有很多，如有需要我把资料发到你邮箱里 : }) Q. Q5 H0 U
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& K6 u) G; P% \0 [9 I1 ^$ T; H4 K" C* y0 i7 [! [9 W- B
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