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发表于 2012-11-13 08:48:12
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1判断语句 l. n$ p1 S; H1 v$ B3 f" {
if <condition> then
- ], g) T4 Z/ L" ?8 R* S9 z <statement sequence1>;5 Y8 t6 H$ N7 {# Y
elseif <condition> then d' E) |1 N7 N) V3 j: H# z5 f: s
<statement sequence2>;9 P p, K" I1 P, _
else 4 D+ m3 Q9 M/ }
<statement sequence3>;( [2 c6 j$ @5 v( P
end;
) h! v$ Y3 _& Y如果分支比较多，用：+ H+ _/ X3 R- w6 r/ O
inspect <expression>
+ J2 \& j5 }) f) f4 W when <constant_list> then, z9 d x0 M4 Y
<statement sequence1>;; f0 m9 l& {7 i- W2 L9 R- v( I
when <constant_list> then
/ B# ^! j6 y# o ^$ r" n' r <statement sequence2>;
g/ }% W" \! x5 o8 Y- A# x; N4 s ...
" J* _5 W' @5 N# n% R4 W2 O else
: C( x; e2 u6 x# n9 a7 U& Q! f6 N <statement sequence3>;
# E5 K, [9 T) F# |4 I0 Rend;
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2循环语句
$ B3 r3 G9 P0 S" O9 o3 w# Y/ A (1) from <statement sequence1>
& T$ k& G3 c0 O4 a, c) A* K until <condition> loop
/ Q0 K0 J) J7 k v* ^ <statement sequence2>;
4 b& P3 `! \' W) p! ^ end;: ^0 Y3 @( t) u! O5 N
(2) while <condition> loop
* T5 g8 E$ \* L b4 c) W1 e! l <statement sequence1>;$ P( `% e; [& J5 }0 ^+ k
end;: X8 L5 u6 A# A4 D; J
(3) repeat
# ]8 W# U7 X: f8 T* L" U <statement sequence1>;
+ O# p1 b' z" s. R# B until <condition>;
. W: F3 L4 {( v3 B! K6 h1 j (4) for <condition> to <condition> loop
; t! N0 r8 E/ ]& O' I0 [, I, t <statement sequence1>;" j8 [6 L9 W; N3 x7 c- C3 r) ]. q. c
next;' P9 y, ^$ \/ j$ ?: `
3中断语句+ J) w8 y6 c* H6 n0 T2 R8 d+ O& `- w
waituntil <condition> prio <integer expression>;
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1 Y6 O# ?& L" \# C以上为常用的函数！0 [" v! U2 k5 t) o+ X
还有很多，如有需要我把资料发到你邮箱里 ! a& g& B# ]/ [! h r1 `
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