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发表于 2012-11-13 08:48:12
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1判断语句$ B4 F1 k* B$ p" T
if <condition> then
. o7 S) W' V1 v0 o <statement sequence1>;% K+ _4 ^. l7 B- ^3 w5 D* q$ e" ]
elseif <condition> then
8 C' V. T3 N4 E8 a% l <statement sequence2>;
$ z4 D8 Y6 d) Q else 9 \1 s- N) _3 Q! ^% d8 P* V
<statement sequence3>;/ [! I$ @' Z4 P4 W2 d2 `5 M( u$ `
end;
3 M5 d. r$ w$ A; Z如果分支比较多，用：+ W# P. a" C; A6 o# D1 K! C8 r9 G
inspect <expression>
9 X- U$ c$ M$ j7 e4 s1 ]0 |! J when <constant_list> then$ U* {7 p' }* p, e! C) `7 Y
<statement sequence1>;
, N/ I2 a( I1 [8 S4 s1 O when <constant_list> then9 Z( F8 C/ |! n# Z `
<statement sequence2>;
7 n- A% `, b. ?( k: n$ v& R1 H ...
5 P% p [3 q8 B, @3 X' X9 L! f else
8 h8 X8 }: M6 T <statement sequence3>;
9 M% Q' {0 E) A, i$ X `& send;
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1 N; q- {9 X# [2循环语句
+ ^) S8 b3 R& v/ z2 `6 E (1) from <statement sequence1>0 P y& ?; T0 J( x
until <condition> loop8 `( A5 a3 n6 e
<statement sequence2>;
/ p1 r" b Z: J; [5 _9 Y end;
9 y* g* T- v' z$ [$ A (2) while <condition> loop& `. D9 Z, H$ Q# v4 a* y
<statement sequence1>;4 t5 I8 I6 O. ~0 ]" i5 q
end;# r1 R9 U- q1 r( y- D; _6 \
(3) repeat , T# x& N3 @/ Z0 N# Q
<statement sequence1>;
- c) |# o5 f% y& E9 z until <condition>;
+ j( I- P% X/ s$ | (4) for <condition> to <condition> loop6 @6 B; ~% |. Z- I
<statement sequence1>;
1 \5 M$ V# X9 E next;
' @( k* N5 N$ o7 p+ T3中断语句
! y$ F0 Q ?) {5 _& j waituntil <condition> prio <integer expression>;) V0 G* L, d ], c
E7 b2 ^( D- ~5 H8 s* R8 _( k9 Z1 A5 A
以上为常用的函数！& p3 d) J. S) k& n( d
还有很多，如有需要我把资料发到你邮箱里 m& q2 d' i7 F+ H: a k) I
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