|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句" w' s$ Z+ Y- X0 N% D! I+ M# P
if <condition> then
4 H# ]. o) H4 M0 q5 q& S6 v: N <statement sequence1>;
% x4 d/ P. O9 s3 _: ]2 i9 N: v elseif <condition> then/ l# ?- U" z R( C: z- H
<statement sequence2>;
z# L) L, S' u* R else
& a) ?$ k) k [: y! }: I# y& f7 | <statement sequence3>;8 _6 D* Y3 c9 S+ ^
end;
. T5 n9 t) Y1 i# {7 [4 b如果分支比较多，用：% b6 x' A# @( U3 ^) E: Y
inspect <expression>
" X5 Z' y& B* K+ P, D# p. Q8 C0 p when <constant_list> then
; U. O }/ z$ p2 k3 w" p <statement sequence1>;
7 y2 q8 }; c6 R9 Z, t5 N( ] when <constant_list> then5 W' T7 d& r# [# ?' D3 z
<statement sequence2>;2 t3 p0 l. C7 \0 K B% Y* {
...
7 @6 ~3 H! \9 U# _: I6 E else0 d+ }2 o& B" ^ \) q. `$ t
<statement sequence3>;' A& ~8 e( {( N$ M# `: }
end;- S" t9 y) ]% }' v0 C
8 T1 \ R) n/ }8 Y2循环语句 _5 K \2 M0 g& `7 e2 k$ f' I& P+ U
(1) from <statement sequence1>
" n/ k, J: G- w, y/ a until <condition> loop
7 p5 k4 V: ?* ^% ?4 Y3 D+ d <statement sequence2>;
5 z9 G* \+ |% \" ^" \ end;
. G- L1 O2 b! M* F* m (2) while <condition> loop
% I e( d1 `/ l0 O- B9 u$ } <statement sequence1>;
0 V- E- A' r5 N% w' ] end;/ }$ C9 m2 z6 g! ^
(3) repeat
) P- F) w; L- p1 U2 O1 X. |) s# Z' n! z <statement sequence1>;3 ]/ u* X5 U/ _. N' H6 S
until <condition>;, }8 |: W5 R4 B4 r: \
(4) for <condition> to <condition> loop, U! J1 _! `, p% r h* V" I, X3 Y
<statement sequence1>;6 l6 N2 `- o& s9 {3 K- U! j
next;
8 w2 m; Q9 m. T1 b3中断语句/ `$ Y1 i$ Q% Y5 B7 {& w4 V
waituntil <condition> prio <integer expression>;( L4 H7 x$ V+ ]* `- s& T
7 a; h m5 @- i/ g$ |3 b
5 ^$ d7 k1 M! |$ P9 h2 N# @以上为常用的函数！
) I9 a' S @4 \; s+ Z6 Z还有很多，如有需要我把资料发到你邮箱里
; \* y! l u# ~$ Z5 W( G
7 I: i5 b0 d8 |4 \9 F7 A- {, Q% ~. J2 U( @2 B$ X
: F7 k; m8 H+ R0 Y
& p8 Z. G$ q8 X! { Y [+ k
7 m3 `2 G% R' ~1 U+ D: r( `3 \7 C" p% m) @% n( E5 J
2 k1 `7 r% H+ q! s8 l W4 y. ]
0 t" @- x' k# V- l# q
& r3 w. S7 f- T X5 n # e/ y% I: ^) @3 v8 Q
|
|
[复制链接]
