|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
+ h, B) o: n/ X# O8 L1 _ if <condition> then
/ X. m6 y3 C0 [7 M( n3 @ <statement sequence1>;
' M( i: X$ a/ Q0 i4 i0 i+ a elseif <condition> then
1 U* N8 y+ V/ k. G/ i9 I <statement sequence2>;9 l( b. W* o6 o
else 1 Y4 v' v) s5 H
<statement sequence3>;
; [$ e+ f* f5 z) z+ k1 B end;7 H- r$ u3 \, n; A0 _" }8 \; ?
如果分支比较多，用：) h% a" k; H5 m) g4 V6 y
inspect <expression>5 H8 ^ y: Q1 g. r4 B9 E2 O
when <constant_list> then
1 B" |6 d/ T4 [+ L <statement sequence1>;
5 P" e2 z w* A2 c. S& F. J when <constant_list> then% _. Z: i H$ K: |' t
<statement sequence2>;
/ W; d# r' ~3 x ...: X+ N8 N7 ~6 V* j
else% n& x! J4 q- D
<statement sequence3>;. W: v: u$ h, p) W1 D) H% W y- K" z
end;
" n4 |) S6 f% m+ F: \- p U. S7 b
) Z) s ~8 g) M* I" X8 N! H2循环语句
3 {; L9 ~+ o! U; D6 w (1) from <statement sequence1># C$ ~" }2 @( H4 h( B2 C9 O) ^
until <condition> loop" W7 y) L) T, Q+ {) f6 q
<statement sequence2>;* \3 n7 Z" f. r# G* E
end;# i0 B0 E" m0 {3 {0 a3 V
(2) while <condition> loop
/ C6 f/ [% u+ p2 k, F) c <statement sequence1>;
5 w/ N: w& o) t8 c: B end;& e' E' Q1 Q2 Z, S) ~9 I( W
(3) repeat ! D6 K* s n9 @0 M5 E/ H, e. C
<statement sequence1>;5 _# z/ } L. G* b: G
until <condition>;
' t4 E1 D7 H9 T* R9 O" J' k (4) for <condition> to <condition> loop# u$ N! ~+ x- V9 x- @
<statement sequence1>;
1 X% _% y8 u9 ~9 c next;
* d' S) r! ~; \% u" n3中断语句
; Y2 V/ }3 L5 b2 s8 O waituntil <condition> prio <integer expression>;# m8 ]) F2 a7 N) @ K; K1 Z
4 o% ^/ L6 e3 I' _
9 ?2 I% t( E7 O; C' |; J3 K- w) e以上为常用的函数！
9 T z7 d$ e9 p+ p/ n还有很多，如有需要我把资料发到你邮箱里 6 `! n- s4 g) w( e' `; b/ t' x& ?
4 @* @/ x7 G3 a* k
/ M8 `0 H7 X2 F" r! @( d1 q5 E7 y& @8 N, e9 ^2 j' \
( A5 ]8 D9 }" v% N, P- K
. N7 u4 m' x: p6 |& H5 D* B m8 |
, w- a2 u/ C' Y1 N
6 A, p$ \+ P9 {; g% n' ?
# ~) T9 F6 t! D. }$ N8 y7 G8 ~4 u6 n! F! Z
: v/ N$ C- j5 c; B |
|
[复制链接]
