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发表于 2012-11-13 08:48:12
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1判断语句+ `( m+ a1 L5 Q7 | z
if <condition> then7 @! J* f" Y7 i+ H6 I& L6 ^
<statement sequence1>;$ ^. K9 u" X' j
elseif <condition> then
' _7 |" |2 }" x& J. J <statement sequence2>;
6 M# K5 A' i2 M0 o' c- B/ a4 ~ else
. l+ |" s& Q( J+ V9 j7 u7 v! M <statement sequence3>;' A l9 ~* T/ i* d0 B
end;" H& p1 {) x: o% P- Y
如果分支比较多，用：6 w1 A3 a( H( j+ ?
inspect <expression>3 v+ ` t& }+ Y) @* @
when <constant_list> then
W Z/ F8 B, v9 ~$ i+ X) B <statement sequence1>;
* ~$ ?" p8 ]8 U2 s when <constant_list> then+ F* Q5 ^8 x0 a( v& w- T3 K
<statement sequence2>;3 s, R& @5 N/ j
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else5 s0 w, y5 o) d5 {' l
<statement sequence3>;
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2循环语句1 l* j; t% D5 R* Z& X
(1) from <statement sequence1>! ]2 a- C ~' g5 a' L; F
until <condition> loop2 [7 C- h; n& Z5 n
<statement sequence2>;9 i8 p) M" C4 @# e# B/ Z5 h" [
end;
% H) _. j; {& q9 m8 n (2) while <condition> loop2 E1 A: c) U* ^/ O+ C
<statement sequence1>;
9 H$ T. B2 ]5 d end;) H$ _8 N2 y- h( A1 g/ T7 x1 A
(3) repeat
- f1 z7 R4 G- L ?( O" H <statement sequence1>;& J8 q7 j2 Y& ~' e
until <condition>;
" }' q8 ]/ m7 q2 s+ D7 O. c (4) for <condition> to <condition> loop* U, i( [. K- P6 F0 H* ~- {
<statement sequence1>;/ Y h" Z/ s7 F Q6 ]+ I% [
next;
$ H# x& N6 R4 G% s9 a1 }3中断语句
+ k4 k6 M* \* h# d* u waituntil <condition> prio <integer expression>;+ B, c& W* X" P
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0 H/ S' L6 U$ g0 ^9 d4 f* m! F以上为常用的函数！
; _' B; y' X# W还有很多，如有需要我把资料发到你邮箱里 , r! c: T$ |2 }2 O4 S3 G) n% g
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