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发表于 2012-11-13 08:48:12
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1判断语句4 x3 G! g+ W2 l- l U0 b
if <condition> then$ B+ Y0 ]& `2 R7 g& s
<statement sequence1>;
- h! O! \" p1 r* w7 A4 Q elseif <condition> then
0 X& h1 Z3 U7 h( Q3 F4 a <statement sequence2>;9 v# Z/ U. i3 Q- e( R
else 6 |5 F" b9 |2 E9 @) |3 Z- s
<statement sequence3>;
, s/ |4 f; }5 o( p: L9 W K3 W, p end;
$ ^& p' u, \6 ~" z如果分支比较多，用：: n0 U. e% v7 Y" ^) E1 t& f& v
inspect <expression>7 u+ M e8 j/ \, z7 k' y& f7 _8 Q
when <constant_list> then: e7 F) Y s( c" U! b! r9 x
<statement sequence1>;
' w& J0 U* m" f G' O( n9 h6 q when <constant_list> then
/ d1 |$ e3 K* \4 {- o <statement sequence2>;
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else0 d- T0 b! k- a: N7 }" C
<statement sequence3>;
?. J: }$ v4 H( ?' I8 D" uend;% O' c& N# s6 w# S4 J, R8 o" T
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2循环语句4 r `& h4 q/ J: x. A4 p
(1) from <statement sequence1>
8 f1 B9 x' e. J0 Z4 N until <condition> loop9 {% E9 ]2 f- Z
<statement sequence2>;
( I9 m6 O$ E: C0 v end;
6 e5 W, c4 t! b$ d( P% J- Z7 X! Z (2) while <condition> loop
$ t& d* T9 E* _ <statement sequence1>;
; N: h1 D3 R; u9 h5 z end;
( K v$ j8 c2 v5 b4 A1 u$ Z# r (3) repeat
+ O% n- Y/ a1 G1 T6 [ <statement sequence1>;
9 ?* l8 v( O3 A% o until <condition>;
- P3 V5 C% A$ R" C! I9 E (4) for <condition> to <condition> loop
3 [3 A# Q% o4 ] <statement sequence1>;% ?" p# ?2 Z( w3 N
next;
* }3 S# h7 _, Y3中断语句
9 t) l- ^0 T4 O0 u( i6 M2 O waituntil <condition> prio <integer expression>;
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以上为常用的函数！2 v0 j% K# _2 O ^' d* |6 s
还有很多，如有需要我把资料发到你邮箱里 6 P* m! z; W9 L* X7 T/ m
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