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发表于 2012-11-13 08:48:12
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1判断语句) W) d8 M' P8 N0 C5 {) ]* w
if <condition> then
1 h: v$ f9 R. | r: _9 ^ <statement sequence1>;
) p9 O' o+ i& E0 S- n) z! Z elseif <condition> then
* b- v* A2 A9 k4 ^+ U. r& K <statement sequence2>;
4 A+ f" l6 F* q else j; D* d: U$ b) m; Y
<statement sequence3>;* t+ p3 E. h& d! H4 o
end;) l h" K: |% t
如果分支比较多，用：% @) U. a, a h9 Z
inspect <expression>
i% A# } m6 V& [5 [, ^$ r. T+ m when <constant_list> then
" P) d0 Q/ ~! h0 h6 P( b <statement sequence1>;4 K( U# C3 a3 n8 ?! e
when <constant_list> then
x! |, g- H3 p+ X% u: U$ D- k <statement sequence2>;
& X6 U7 ^ e d0 @ ...- B, p9 I. b- _2 |. b
else% J+ a1 S9 y3 I" m- S* y' B
<statement sequence3>;
& o ^* @! a) w$ l. x: qend;
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2 Z# m+ ]1 F# ?* l; x2循环语句) s" X P* M, W, y5 e
(1) from <statement sequence1>: @6 b! H" h7 u
until <condition> loop
# ^) b1 |# U; \/ f- w <statement sequence2>;9 x4 h$ F' q. E/ S2 Q1 f1 ^+ J: p
end;6 u) m, R; V; _5 P3 N7 Q
(2) while <condition> loop* ~1 T8 a# b: I( i3 q- \
<statement sequence1>;
0 C0 X- w: B, Z" d) f+ t end;( r' g' ]& d1 C3 |5 G
(3) repeat
8 C) _7 |& p7 ], ?: W' j: k3 V- G <statement sequence1>;
* P( g) Y* e9 u$ \ until <condition>;% z5 z. f. P" p# _* w
(4) for <condition> to <condition> loop9 Y3 Q, y) c0 `
<statement sequence1>;+ [4 o# g$ f8 L- I2 Q7 `/ i/ N
next;
9 X' B0 b8 x3 d& }# f6 F7 R3中断语句) U& B1 X4 h j8 l" t* A% S
waituntil <condition> prio <integer expression>;( ^% Q9 [" c( q9 @: ?) W' y
: V: a' f% ^+ O! h% f8 \; W+ f' i5 D3 A" p
以上为常用的函数！
0 e4 R. p3 Q0 `- e1 I还有很多，如有需要我把资料发到你邮箱里 - K! b7 E9 u/ j/ v
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