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发表于 2012-11-13 08:48:12
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1判断语句
# ]3 l6 z9 U0 i, Y' f if <condition> then% k3 E$ j, Q- j+ ?8 _2 Y$ m7 C
<statement sequence1>;$ ]* X2 S# y; ^ g8 g+ J
elseif <condition> then
1 t( V* T4 `+ d) d: U7 c8 \ <statement sequence2>;+ A, f M; @) v4 u8 t
else ; d& o7 [8 L7 k% |# ]9 M
<statement sequence3>;2 G, Q+ A, R. B! f7 a
end;( D: F+ @8 l% y- V; y8 h4 D* I$ X. c
如果分支比较多，用：
: L4 q. R; f9 L# _7 K* a; I/ | inspect <expression>
5 E% v |1 J" i when <constant_list> then# b; e% g x& | i& p6 `7 e) `/ Q
<statement sequence1>;
+ u; j, J0 G! D3 i4 k when <constant_list> then% l: g: U8 q7 \; W# O0 @! B
<statement sequence2>;
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else
+ h' w; }0 l. m# A4 D3 r <statement sequence3>;; Y9 O4 Z- H/ p; J
end;& I7 a2 i5 b: r H+ Y o
% G$ S; q, W4 |1 C0 B) c5 z2循环语句
7 `3 P! C' n/ U3 u7 O (1) from <statement sequence1>, v4 X/ l' R T f) j L
until <condition> loop2 W1 k1 c' H* D" S
<statement sequence2>;
9 }6 ]1 v: P2 Q; [! G3 V2 i end; E1 {, [$ g K3 L
(2) while <condition> loop
1 p q; W( T( ^% O8 o& v <statement sequence1>;. J* q1 V0 R8 d, m6 j
end;/ B5 P& b. A! e
(3) repeat
4 B! R8 z: J- N! j <statement sequence1>;
4 z p. F$ _2 j# a# n3 M8 R until <condition>;
/ f) F; Y! y+ Q, I. s (4) for <condition> to <condition> loop6 Y; ^; v+ e! B# x U1 {
<statement sequence1>;
- Q( L( Y$ o% P- x& P( O next;: E. R* x( m* ?9 z; L; f5 @0 R
3中断语句4 e& x w% r" E6 v" F( W: e3 ~% D
waituntil <condition> prio <integer expression>;' ]4 `$ h& y/ x
8 u0 B# ]/ f, B/ S. E6 S# P* l% N
. R- E2 t: d7 ~0 ?, s以上为常用的函数！
4 E. {: }0 u7 r# _( S6 j6 Y) p还有很多，如有需要我把资料发到你邮箱里
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