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发表于 2012-11-13 08:48:12
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1判断语句# X7 C1 g- m* e& `% u6 u
if <condition> then) ]2 m2 z, R: G, Y$ d4 ?) L+ d
<statement sequence1>;* L9 R: K+ K; R6 m6 |
elseif <condition> then& d+ r# W0 K. m8 N
<statement sequence2>;2 c% \& D; m4 ^: @9 i
else - E# \; A0 M9 b( R; Y, b" P
<statement sequence3>;) ]4 _ S. V4 }/ c; C+ V
end;
; i8 E2 j7 w7 {! ]3 o& J C如果分支比较多，用：% m& Q" q1 {% ?4 H: m' J/ T
inspect <expression>
0 l$ M6 f1 v% P& _. [! G when <constant_list> then. F3 {( |! W& Y
<statement sequence1>;2 M( E) t& W. P7 N ]/ O3 O: ]" B' \
when <constant_list> then
+ l; t4 h1 r! J9 } <statement sequence2>;3 N* {9 {: c: }$ |, R. U
...5 [$ t% J! x8 d( j( \
else
. T' j+ O+ [& I4 ~7 d3 G <statement sequence3>;
1 d1 ^3 O3 a# R2 I e) aend;
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2循环语句$ M+ _/ x3 P! L) A
(1) from <statement sequence1>; `4 L+ |5 {) ?+ A3 z- B R
until <condition> loop9 P. ?) m" a6 c( P
<statement sequence2>;
/ f0 |; q( }0 `5 Y# @ U end;7 i- G$ L+ n: y
(2) while <condition> loop" r- R* I6 \1 B2 {+ k- y3 d
<statement sequence1>;1 H) I" y8 [. }4 b' Q
end;
3 N) U: h( b9 n. T5 I' N (3) repeat ) k ]0 @+ o4 I# I z5 g
<statement sequence1>;
9 x9 F8 M9 s4 _/ r4 w8 Y7 Z: G until <condition>;/ H: G) w7 l& j
(4) for <condition> to <condition> loop C V( ? ?' @0 ~
<statement sequence1>;
" }+ |! J- N3 [/ Z* y' ? next;
3 G2 {, U: `3 e' p! x" \3中断语句
0 q/ H* \- K" [ waituntil <condition> prio <integer expression>;: ^1 S7 w5 L/ i5 _5 S7 h( P) s- F" B5 j
5 ~. V5 q1 y" j1 F* v
3 U9 f) W6 |4 d! V6 H, e以上为常用的函数！
; L, e) q$ @ e7 q) \3 k还有很多，如有需要我把资料发到你邮箱里 / X- [9 q. I7 f8 o, p- F
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