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发表于 2012-11-13 08:48:12
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1判断语句1 @3 l- [/ Z3 @- `* n& V
if <condition> then
7 _# M+ Y {0 r4 B6 ~2 d <statement sequence1>;
& }) ]9 |/ t* X! G0 ]% k elseif <condition> then
1 s) k. L* r" q! K$ l <statement sequence2>;
6 x, F# j: @- w5 D* s else 7 b6 D# ]; b7 o, {, z6 s# _# G
<statement sequence3>;
- ^3 i& k: C% [ t. e% V end;
( ?- o. o' R5 J1 E! L如果分支比较多，用：
$ _& h6 |: H0 G/ e! H1 r, m inspect <expression>, n# @% V* \( K) z( Q: F0 ]/ G/ K7 J
when <constant_list> then
J3 @8 |1 r& g5 r <statement sequence1>;7 w# b' _: q- |2 Q2 n8 J7 u$ d8 w" ~
when <constant_list> then
0 H2 |( l1 e& o0 v7 k <statement sequence2>;, j: A, V9 t8 W5 a% a
...
6 U( P4 M2 I [, B else
0 N9 T% _# I9 f f9 e1 V% M( i/ m <statement sequence3>;0 ]7 X& q$ N8 z1 n
end;) \/ r& s- A3 p! a7 P7 }
# Y' _% F* j4 K7 N2循环语句) k/ n$ d" X, d6 Y9 m
(1) from <statement sequence1>$ T( h0 l+ Y- ^. C7 i: ^
until <condition> loop
" M c/ X4 F: z- y. f4 |* X <statement sequence2>;1 j! q* g7 z( f9 w, m: X
end;
5 |" Y* r: n7 W: C, n (2) while <condition> loop! `. g* t$ G9 ?1 Z
<statement sequence1>;
$ @6 L' m2 }7 d0 z5 ` end;
, y! c! j7 a& ] _, Q! Y6 d (3) repeat & v$ _8 u8 H* J% O
<statement sequence1>;
2 i6 M1 B" E$ @( |1 N/ ?) O" H! o until <condition>;: x e' i6 f2 O
(4) for <condition> to <condition> loop
; n0 |3 c: @( J W3 W6 b0 h# @ <statement sequence1>;( g. x, H! {" d4 _5 G
next;+ T+ F- c; W, K2 v- M0 o0 f
3中断语句
/ g }. M( i* i3 ~- A. m$ Z waituntil <condition> prio <integer expression>;! D" g& b9 v! t4 l; s, ~
4 _( ]! E- s1 y/ r' N; N3 }$ z( r
# j: H' z" I* g$ ?以上为常用的函数！, c* ^4 c, Z7 ^9 ?1 I! j2 B1 F4 L
还有很多，如有需要我把资料发到你邮箱里 ) ^( l' U2 U% U% \ W& B
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