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发表于 2012-11-13 08:48:12
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1判断语句
! P r- Z* o E9 ]- o) a) y if <condition> then
1 v8 S4 t( `/ i$ Y' a$ B7 |+ N <statement sequence1>;- Q3 L$ @( H/ k% h
elseif <condition> then! t' \% `/ ^( _ S2 k% y
<statement sequence2>;" m9 u9 g/ b. {& v$ O
else
# c) H7 k2 n6 T5 @7 A <statement sequence3>;* Q( f/ a" X: j2 L
end;
7 Y3 i) H" m7 ?1 n$ e, R6 k如果分支比较多，用：
+ Q+ w: c. G6 z7 C7 C* Z5 T b) X inspect <expression>% f) h% H& j( _+ c! M
when <constant_list> then
: X; O* H' { e1 [4 W <statement sequence1>;
6 N7 z& N* p5 L when <constant_list> then
+ q) U( I& P$ F; D7 J# F <statement sequence2>;$ O/ p: K! S+ T( b" l1 w8 m; ]
...
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<statement sequence3>;
( X9 U" [- ?3 d( R3 Uend;
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+ a; w% m4 N: F5 w5 u! |2循环语句* f8 v% x1 _6 } O& s+ j! S
(1) from <statement sequence1>
* R- `% }8 J0 h until <condition> loop
0 ~( ^' Q' U: x" d* B, c/ t <statement sequence2>;: G' R- U) U) j6 a! ?
end;
' D! |" W$ x6 a. B (2) while <condition> loop
8 Y: B9 d& {: H H* L4 z3 g- _ <statement sequence1>;
; h: V N. x% I; C end;
~4 y+ _! g& A: X (3) repeat + t0 n$ S9 ^9 E5 j$ a+ j
<statement sequence1>;
]& h4 H2 d h P until <condition>;
/ @6 {: ~7 t: c$ X$ Y5 y: V4 s8 R (4) for <condition> to <condition> loop
. D) E+ N) M+ @ <statement sequence1>;: H2 Y; T6 C9 M; O& a* ~
next;
* a! F: I6 N% o1 J# C3中断语句7 L7 k& p! g& C% r Y8 H* t
waituntil <condition> prio <integer expression>;
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1 P. {; u7 v. D0 g5 r4 Q; I以上为常用的函数！
4 \* o& M J, L. {还有很多，如有需要我把资料发到你邮箱里
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