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发表于 2012-11-13 08:48:12
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1判断语句" C" u3 G' y) {; |# S" g" y4 z% `
if <condition> then* Q5 W# c/ p8 c3 d0 D0 X4 {* R& w
<statement sequence1>;
F$ I( P/ C4 s& e( u9 }8 b elseif <condition> then# t9 T5 w c7 J$ F9 Q
<statement sequence2>;
+ I8 g: S8 i, x; s: F1 I9 k else
$ c# C/ H' w) ]5 B, p2 f3 } <statement sequence3>;% u8 N! `& G9 Y
end;1 f: c; K" M/ R! f0 `9 O/ G5 r
如果分支比较多，用：: G, Y2 o6 P- j9 T0 y; ~1 B
inspect <expression>
4 d0 |% ?& j, ?8 h7 w9 Z0 D when <constant_list> then' k9 J4 f N; q- T. L$ j3 f( M
<statement sequence1>;; c& k) m: d6 _4 j$ W6 W2 W
when <constant_list> then
1 _7 o. Q$ ~% w8 w* d <statement sequence2>;
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else3 x( {' B6 J( B* n( a
<statement sequence3>;
7 e( u+ ~" J) I. h, F; S. U. Dend;- |$ s5 k+ H) T) _' _
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2循环语句' V9 B4 n3 S0 s
(1) from <statement sequence1>
% f& R5 F7 h3 ]) M/ B7 M9 u until <condition> loop
x3 P$ H) q$ K; v" c <statement sequence2>;9 z% o" f: w5 \/ ]
end;1 F9 M# q2 O$ l
(2) while <condition> loop
$ n* |- T$ v8 Q! l3 Y* p+ b <statement sequence1>;
; k4 O# t% w% W end;
0 `( U' ?& K/ K3 i (3) repeat - T, O0 S8 D; _; E* U
<statement sequence1>;1 J& }1 s& ^$ H' p% E
until <condition>;1 x/ k1 Q/ a0 b! v/ c% W
(4) for <condition> to <condition> loop+ e; I( {1 L4 a1 \% {
<statement sequence1>;5 m; A$ q3 b- p- j) e1 T
next;
# m. w9 U E6 x3中断语句7 E% W6 f8 `. k- I
waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 C6 R) i" n) ]
还有很多，如有需要我把资料发到你邮箱里
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