|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
9 T4 x' j4 }, _* Y6 p7 ]2 l0 g if <condition> then' ^. m; _9 z7 P* m' P8 I5 H# r
<statement sequence1>;
' p/ H7 H# O9 u* w! Z( z" z- ` elseif <condition> then
( {7 n% o6 r2 r8 q, @7 r <statement sequence2>;
( |" T4 P. z. U2 f* o4 Q else $ Q! d/ @ ?; M1 ^( ^
<statement sequence3>;# X# ^1 Q: x9 s* F
end;
3 M; L) O9 J0 e% I0 b/ i/ w如果分支比较多，用：
8 D& l. ` X6 D: `: w9 D inspect <expression>
" H: S# E! t# n( _( i2 f0 C when <constant_list> then9 ^, D# f O' @; h/ R+ |
<statement sequence1>;
6 f2 D' a" ?, m1 _: Y when <constant_list> then
, w% ~+ `3 {7 U$ u7 C( F" L <statement sequence2>;
. e3 M. c9 ]9 [9 n+ m" n ...6 B- y1 a4 G, {! N
else/ E9 E0 s, `7 d& Z7 P& {
<statement sequence3>;% a B5 ?4 c* t* y. L
end;5 I# A6 i% z$ e# v
7 z. X2 L. w1 A1 c7 q7 N( Q2循环语句
1 j# B8 k7 X, Z2 X a* ` (1) from <statement sequence1>
8 P0 ?3 {9 s# f b until <condition> loop, C) W- A4 k" w& s3 |* E0 J% f, }
<statement sequence2>;1 c U3 b3 x, u3 x/ ^! |
end;0 O0 i- z$ x! e% m3 J# W/ C
(2) while <condition> loop
; v) W0 r- {) n4 E <statement sequence1>;
" l. r% j* D; F4 D5 b2 ~7 c end;. Y' ^( @ |+ I6 \: l/ s$ d
(3) repeat $ T; V' Q) G1 P# g# K: M
<statement sequence1>;5 x. e. }: Z6 C. u/ ]
until <condition>;
7 {! A8 ~: w4 d5 u5 ^ (4) for <condition> to <condition> loop6 g8 {# b& r6 {5 L/ K
<statement sequence1>;
* r* B7 \4 v9 ] next;
% H. G; r* z3 ?4 \1 |& [3中断语句
' Y7 j1 o* K( g- \! H9 D waituntil <condition> prio <integer expression>;9 x/ p( _! _; j
; n& B+ E3 Z$ e# y; C, n: Q/ P& V& n* t; Y6 f
以上为常用的函数！
3 ]! g" c' ^# O, J" `! k还有很多，如有需要我把资料发到你邮箱里 % P% A ^+ J( l* U# E# b4 c9 f/ v
9 ~/ l! K! A6 F3 h
2 B5 n! h0 B/ F7 M k
- f* t; p+ c6 k. M: L2 a+ D
6 _. w2 g) Y. C' q# j
2 s2 m1 U6 G# r1 d! a0 U7 s% Y" X7 q- {' B0 b
! _9 G( I! G- g4 y4 ~! F" i% E
( K2 B) S# R# }& c) l: p9 x8 J: d6 J* v/ F( N8 o+ T7 [8 m; t$ @# Z$ d9 {
+ i7 H1 z3 x: v0 x/ m4 D |
|
[复制链接]
