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发表于 2012-11-13 08:48:12
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1判断语句7 c8 l* G% ]& F
if <condition> then. }/ x: D# v) P2 K& A9 _8 n2 z" g' i4 c
<statement sequence1>;$ f+ B- |5 @0 T* l9 S8 w) f/ O
elseif <condition> then
( P) n# d) p, k: P6 ] <statement sequence2>;( a5 F9 A5 J, O0 k4 |
else
. o$ A$ L( Q; `& h& [' ` <statement sequence3>;
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如果分支比较多，用：
% d) {% G& `4 c) `7 V inspect <expression>' x0 @. R# H# l. W
when <constant_list> then
8 s5 m! L+ ^) l+ J: D9 \ <statement sequence1>;3 K4 K4 ~$ ?0 K6 u% i2 Y9 c
when <constant_list> then: F6 n0 o% y/ S! f- _; u
<statement sequence2>;
# i) y+ O3 h7 A; U! T8 ]. } ...
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<statement sequence3>;! d0 U) Z" }! L: z3 M% T
end;1 P- H/ A0 v- j6 K: z. j% q" g
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2循环语句
0 r4 a, _; V2 e" p- b! R a# E (1) from <statement sequence1>
% t: Q6 ]3 X# h- S6 ~ until <condition> loop G2 G/ {( C7 ^9 N1 \4 L
<statement sequence2>;
; R/ { d; Q) {' n1 @( X8 q end;
7 G% k4 h p. a. E4 R (2) while <condition> loop
) y$ u1 c$ I% e' S <statement sequence1>;
7 I6 ^7 _0 r1 M end;7 {/ O- t5 Y1 w& H
(3) repeat 5 q/ s8 I7 o. k
<statement sequence1>;& H8 C. s$ M( t1 k' X/ C! j
until <condition>;- \; { }1 i+ ?: |! m: q
(4) for <condition> to <condition> loop6 Y2 C( {8 }2 t2 f- Y
<statement sequence1>;8 ]8 _2 f% a4 v2 u
next;
( c. D' m* b% E9 J: ~ ~. J, y3中断语句
6 Z" i( o1 G: }* B+ G waituntil <condition> prio <integer expression>;
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( i/ C' B% d0 V# t以上为常用的函数！
e( ]2 K: ]! y3 J! |还有很多，如有需要我把资料发到你邮箱里
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