|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
|* {7 |/ H8 q0 M if <condition> then C8 M+ }; \6 H
<statement sequence1>;' r! T; Z. W8 r$ d3 e
elseif <condition> then' ~/ H+ ?1 z* h5 [/ c/ B
<statement sequence2>;) S% @$ Z0 a5 f, ~
else
! u$ [/ _2 Y; Y! |" K- X. E) C <statement sequence3>;
" Q. [9 r& S, M. b% o3 l% v- O# S end;
5 c4 n1 A" x" B2 a4 x% D如果分支比较多，用：
6 i0 s ]# R4 b: n! P2 P0 ? inspect <expression>
& r, b# [% V% c2 y2 R when <constant_list> then2 W7 h. {6 z1 m
<statement sequence1>;
* J; a7 ?* a. `4 e when <constant_list> then
' g$ F) J- x& r6 y( ?' s <statement sequence2>;$ L8 ~4 L. }7 N) J7 s: i
...
6 Q" S3 \3 {6 k* R- t else
- o" i& w/ @) C6 V <statement sequence3>;- T, K3 @7 n% |2 q' t7 Q2 y
end;: x7 j; R+ J6 K/ v5 N/ s8 m9 W
4 \0 J) V6 r# Z. e; O2循环语句
& v, {2 o8 r/ f; e$ y9 n3 r) A (1) from <statement sequence1>1 A. L; G M( n! D4 f' }9 p- k. x
until <condition> loop
8 L- \) Q7 l9 r9 C4 v: q2 i <statement sequence2>;4 t# D2 u8 I7 T
end;
1 `3 d& W# X- _" e (2) while <condition> loop
4 P: x) W. `& {. X0 d5 d8 A" f <statement sequence1>;
8 }5 @0 I M& t) z7 p% ^ end;
1 _6 z' q9 ?- p1 a8 \( @3 ^ (3) repeat
" l% r; v5 c. ^" T, k4 q <statement sequence1>;
/ D+ M. q; v% z; ?2 w' e* P5 ]7 z until <condition>;8 U: Y. v: ~, A6 D/ D: y* t
(4) for <condition> to <condition> loop0 x: C( `: Q7 ]
<statement sequence1>;* A( G; t0 a1 `
next;
5 |3 | f+ G8 t% R- m3中断语句8 ]- N( C8 m0 u$ v
waituntil <condition> prio <integer expression>;
6 X" O6 a7 m& @
' x' I& I+ ^6 c J, B6 i; {+ w5 p7 ]0 M
以上为常用的函数！ R& g3 K* u6 B% V# a
还有很多，如有需要我把资料发到你邮箱里 # q" q9 f9 U2 s; q0 T* W
; c6 c; R( A& x" [: Q& s3 Y/ l) E; T- ]& a: j
5 S/ |. ^1 u1 n- R3 y
0 N6 e" v& _* @3 N4 X
) R( F, {9 }2 U2 l, w) y7 p( ^
9 a Q! R" c* i" |5 @! E# N% R1 e1 N7 C
4 Z& g$ R, H" I& l9 B, k* o1 ?# D- S
3 B# Z% X0 U, l, N' r5 K; k
- |. r2 s( C, a |
|
[复制链接]
