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发表于 2012-11-13 08:48:12
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1判断语句
0 t/ I& d' t# P' d if <condition> then$ z- d1 ? P8 _# \
<statement sequence1>;
1 b7 o1 {/ K) O. y) @/ \/ O elseif <condition> then
7 Y0 }) N# W4 J. U <statement sequence2>;
% S U/ M$ m3 _3 N9 M else ( j4 @6 z5 S( s9 J/ v1 A
<statement sequence3>;" y- _- {$ h2 C+ m9 o0 |
end;
$ A- R7 j( j' w f3 [/ R如果分支比较多，用：
# `5 o. S( B, { inspect <expression>
: u' {" }1 Y/ r: i/ s when <constant_list> then* d$ s7 m w& B2 t" K* [6 Z4 W
<statement sequence1>;
( J- A7 j- V) o2 }' J% b m when <constant_list> then
! {* [; }& g) i, q0 y <statement sequence2>;
Y I8 I B( d0 v4 {2 \ ...3 |- v3 H5 v9 _! J
else, {( I) M" U0 c J( z, A! t) q
<statement sequence3>;! l- d* t2 \7 A% Y
end;' p3 |' o: S( `5 T
8 N4 b' C& a% O k" n2循环语句
9 @& _, p9 _% B, K) ` (1) from <statement sequence1>
2 A/ l" c0 V- L6 y% _" k until <condition> loop: _5 l2 w- C7 J2 |% }4 \
<statement sequence2>;1 x7 T3 D$ c+ t2 D6 b; L t" a
end; q+ f. B/ ^- {, p
(2) while <condition> loop Z1 @" p6 m! q- M2 m( _! E. ^2 G
<statement sequence1>;
0 z, N& L3 w. Q4 {0 R8 q end;
6 F1 D3 ~& A9 \9 D2 E (3) repeat
5 ~; q- R; {- ^2 o! l <statement sequence1>;
6 U* p ~% E' L( P8 b, j, C until <condition>;
; g0 D- B) v' _" b( n (4) for <condition> to <condition> loop
* p" |* C1 b2 Q8 `$ R <statement sequence1>;
: |9 A, b5 b0 q$ z next;
7 S& c* y2 p# Z# e# M, a+ {3中断语句
3 g- M/ I5 N0 Q4 x8 u3 u waituntil <condition> prio <integer expression>;- P( L, w m/ I" j' ^' t/ x5 q
$ A4 i7 |4 Q6 j; U, @
% x0 d _: N3 E) U' g' y2 Q# D以上为常用的函数！
5 x- y2 _7 F3 @$ C1 M% x: [8 F还有很多，如有需要我把资料发到你邮箱里 . N; I- n; m5 j' Q1 C( _
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