|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
, k2 B' {, b- K6 N- s9 v( O% y: @' ~ if <condition> then
; M4 C7 [4 l' x `# p! D3 e <statement sequence1>;
2 s# V4 z+ d0 J$ y$ _# G elseif <condition> then
% T4 L6 j" B8 H5 T% `( J <statement sequence2>;6 o$ b( T! J; N
else
% [+ ~) [" b8 _, \2 _4 `( g1 F <statement sequence3>;3 ^3 t6 U4 K. K+ p) {2 Y) h
end;* J1 ?2 S" D0 {
如果分支比较多，用：
9 e1 p0 Z# W+ E+ d* c4 @8 j; c inspect <expression>
. N. A; q5 P) e- s& K9 T" v7 r when <constant_list> then, l! }4 h# ^% ]2 p
<statement sequence1>;
8 w9 |4 P+ y0 e% Z when <constant_list> then" F( i/ _/ i: M
<statement sequence2>;
( S. n' I: A; X C; i7 O* {; o ...2 n5 u2 G+ p s/ X+ ~' ^* V6 U
else7 p9 H/ }1 X' Q4 S
<statement sequence3>;) p7 y- Z* E) q+ Q% W/ I9 f
end;
8 H) c; O% O' W3 N1 m
r/ m9 {% v" k' p5 k- ^$ u2循环语句
' p) G7 {1 k+ M5 f5 V5 L (1) from <statement sequence1>4 Q; a6 D5 `0 x: j. w
until <condition> loop
3 N0 H5 `, [9 b, k <statement sequence2>;/ Z, c0 Y( }- U3 b" w" b
end;5 x& u! V; ^: G4 J4 u8 s! L( i
(2) while <condition> loop) \/ l2 e/ P. ?5 P& B- j9 e; T
<statement sequence1>;5 `2 w3 D; y# I; g! s, ^6 X
end;
+ x3 i" j4 m1 N; d' V (3) repeat ( t3 a6 k( \( G7 k1 U. u3 {
<statement sequence1>;
K& V% o( U, O& H+ \0 ` until <condition>;
2 z* ]3 z$ v! N. O, j4 s (4) for <condition> to <condition> loop* Y [: N- Z; T) ^! C
<statement sequence1>; ?+ e- Y+ Y$ p% \
next;) e3 C7 S- S1 A
3中断语句
- X* U9 S9 T! @- k waituntil <condition> prio <integer expression>;
# b5 n3 b8 r' I1 ~( T1 ~
+ i$ R( [; J. q/ ?/ f, y, j
. u- u- Z7 i3 B3 c" H% {以上为常用的函数！
2 T6 Q* s$ G+ W; G! H9 {7 P: |还有很多，如有需要我把资料发到你邮箱里 5 H% m, a: o0 }/ R: S a/ V
* N0 p- V, f' |# }" T' o1 }0 n' u5 a/ _, z* w( y
% k) y2 ]0 R, m- k% O
$ S5 d" W7 m$ D) u& B# g0 q0 _0 o0 v" y$ o( o- r* Q$ t% Y$ Q
8 g+ m" a1 y) H9 r
# v* ~9 o9 Z' V5 {1 g% V% @ b6 H, }* n
4 E2 Q& h/ t7 Q" ]" ?- u
; g7 W# {# T# l) @# r/ {/ t
|
|
[复制链接]
