|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句$ ^4 n8 b" N- n% w9 k& F
if <condition> then
$ _% R6 R* l) E; r8 |& {8 c8 y% N <statement sequence1>;
: x7 c0 X% Y5 N7 q5 b elseif <condition> then
- U) F2 L& [/ P9 m; ? <statement sequence2>;
( e- Q9 {& `; }4 s+ H- ] else
6 l- D: ?8 a d <statement sequence3>;
. n6 L& I% i5 M/ D+ p K end;0 D* t' A, B. g; u, Q
如果分支比较多，用：
3 \& A6 W1 `8 B6 m- [% r2 J; [* z inspect <expression>
/ A# e9 ?6 k, d5 W when <constant_list> then4 z/ ^! j3 u: |
<statement sequence1>;0 M/ ^9 H) k: D8 c) `
when <constant_list> then
+ I% ?9 f: h0 E8 o <statement sequence2>;
4 c$ A% ]5 F' j5 y' Q6 S ...
V; b, ~ Q* p5 M else
h" t! J' H3 U/ p6 P# R <statement sequence3>;
( v; i2 V* A' R% f9 ~end;
. ]) e; L6 I2 l, `9 `# u* G8 e Z3 o
2循环语句
7 S1 T4 R0 K8 B6 w2 o6 i (1) from <statement sequence1>
0 e2 o' y! r" i" X0 u until <condition> loop9 [7 Q4 @9 l7 _' p1 G
<statement sequence2>;
, Z; G3 \7 x/ S& m" k' M, K end;
) x/ C4 p0 ^! ^6 @% Z" O1 V7 V& [ (2) while <condition> loop
+ }( w1 b; f4 D9 R& p; F& I% W <statement sequence1>;
+ P% d9 }9 L# X, C end;
9 _$ ]% R$ E5 c/ o (3) repeat
! ]+ @, n) v' L <statement sequence1>;6 A/ n7 j2 o6 A( e, ?
until <condition>;
! r5 A. j6 r# A6 x- Y0 r (4) for <condition> to <condition> loop
$ t4 V( v) z, C- O% Q; d <statement sequence1>;: n1 t6 `3 I" s; S4 B1 r& \
next; ~& J7 K' v& P' r
3中断语句
4 m1 W& p) X( K! i5 ~7 ~; ^ waituntil <condition> prio <integer expression>;
/ n) o6 |, {( F/ x% c! t
E. M+ ]! n; s) J3 Y; A
`! X: |" T E: w* @1 s) X, S! P以上为常用的函数！6 c+ a- R& I3 T( g h3 A
还有很多，如有需要我把资料发到你邮箱里 + m& U0 {& b3 @ w$ O
% w |5 z" H' l& F$ E U
4 i$ r# j0 t: S# r8 K7 A$ ]8 F8 M
0 ^- s. } X6 P1 W; y
/ t) ^- Z- B5 z8 b; M" u) f8 Y, Z: D7 z
! O Y( q; A5 j( i) \
1 u& ^0 H1 v2 m
6 |8 m3 W" |) V* H0 W; d 3 o7 [! ?0 f2 D4 ~6 {
|
|
[复制链接]
