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发表于 2012-11-13 08:48:12
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1判断语句0 U8 T& B% s! ?
if <condition> then
4 S4 J @+ k0 I) M3 e* q5 r+ Y <statement sequence1>;) @0 c0 e; Z$ v; Q9 w& `
elseif <condition> then
6 X* w3 q; `" _& r! m% { <statement sequence2>;
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<statement sequence3>;
6 B' a# c7 h9 k9 S8 G- w0 o4 \& n1 x* C7 [ end;
4 E: w4 r% Q1 k1 B7 m2 v如果分支比较多，用：6 e/ k2 x. L3 E' T
inspect <expression>
! |$ b c: W# N) ]1 ]# ~+ a, L" {( W0 d when <constant_list> then/ o$ h8 }" g3 h- I5 W' m
<statement sequence1>;" y6 E [0 q6 Q6 y c
when <constant_list> then
* ~; r" s2 \$ d1 b; Q' e <statement sequence2>;. T3 w/ k. P1 [, c/ Q
.../ h8 r, E9 F+ P: L0 r: ^5 C
else4 J7 s* d" J7 ]4 z; T
<statement sequence3>;
9 w D0 [, ` oend;: \; U/ k: e7 a3 \5 u7 e
6 Z9 s' T5 F& [. J6 a1 Z6 {0 y2循环语句9 `) r, I* N" a& U# p, \4 ?
(1) from <statement sequence1>% k e7 T& y/ G0 T+ g5 q
until <condition> loop
V, [1 E" ]: }& M0 W6 S2 { <statement sequence2>;9 V. w! v; y' V7 N0 K9 J5 |
end;4 U1 R3 ]7 n3 [8 W. X
(2) while <condition> loop" F* w% G: b" F: X$ t7 h; q8 \
<statement sequence1>;
6 t2 A- H0 y4 l- J& m end;
0 G# X& O. s6 a (3) repeat ; ~% \' A6 g1 F1 N2 I- _, O
<statement sequence1>;/ `5 [( `9 j9 i4 @/ C w
until <condition>;
; y* @2 A$ K4 A) J. b (4) for <condition> to <condition> loop
) m9 n8 d. |8 U/ e; y2 f. Y7 Y3 m/ q <statement sequence1>;8 L, \: w: Q: C
next;0 e, ?' f" w& J& X
3中断语句
; L) U: j9 f6 V. ]5 T" c8 I! g waituntil <condition> prio <integer expression>;
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以上为常用的函数！! d$ u* ~, x" o- j7 d
还有很多，如有需要我把资料发到你邮箱里
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