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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
% k4 [) r- \% D3 V* v if <condition> then
" D7 L/ o) e- Z/ M7 j+ b. D <statement sequence1>;) A( m9 D: e; | g
elseif <condition> then
/ z% J$ M1 x. r& }( g! P <statement sequence2>;
! m! q% ]& c/ m! Z else
, Q/ Y6 U! Y$ a4 z6 z- K/ X" j <statement sequence3>;
* P1 x& o$ m8 [8 b: y end;
+ i6 o6 L u( l5 e, \1 k如果分支比较多，用：% l6 P, s& A- D u, s
inspect <expression>$ @: M& L% c. D1 C/ U2 q
when <constant_list> then% f. ?* j+ N$ i8 ?- z4 G
<statement sequence1>;
9 r9 L0 `' Q3 d1 _ when <constant_list> then
6 l+ P4 j6 Q7 n% E0 Q5 c <statement sequence2>;/ I' H% ~ X/ w
.../ M- U I& r# q* B8 L, I5 g+ X
else3 I' U4 }' D1 y& r
<statement sequence3>;! D7 v9 `) ?( a( q$ ^* x& b
end;) ]! V* M9 u& _$ N# A8 Z2 A& O( h9 ~
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2循环语句
0 U) \# }0 y) c8 g& w! Z% p (1) from <statement sequence1>
+ @" i7 c% {0 W# [9 P until <condition> loop' m# M% L6 |& `) f2 o" V
<statement sequence2>;
( Y7 x) J& S- Z4 D+ o7 `2 j( v end;
& n2 i; C) Y o. D" V9 } (2) while <condition> loop D+ w, a2 Z4 R) r7 Z
<statement sequence1>;2 ^3 r% ]) I0 X7 M0 L4 f
end;
6 L" q0 d4 [ ?7 \9 n2 b# x (3) repeat 0 O% W1 J! n( w4 B0 ?
<statement sequence1>;% ~2 g1 m& W6 @, p) l5 h, N
until <condition>;
& W9 J, l+ d+ ]$ n( J* q( } (4) for <condition> to <condition> loop) E5 y8 H& m" y- B: s4 E! r$ @' u
<statement sequence1>;
* g9 C) g; Y7 E% M$ ?% s5 n+ `' Q next;
4 T# S2 z. _% G9 i$ q0 l3中断语句
, O$ [ L- B8 f: h waituntil <condition> prio <integer expression>;7 o) S2 p3 @3 D$ b4 V% Y4 u& S
0 r9 p4 q& J! P+ @7 A+ U5 I" ]8 \. y) K# R8 b" }
以上为常用的函数！3 e8 Y7 Q: }9 P1 F; @; v
还有很多，如有需要我把资料发到你邮箱里 + w& S) K- N+ V
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