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发表于 2012-11-13 08:48:12
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1判断语句* e, x# E+ Q# e# f# N: K; p1 ^
if <condition> then4 F2 s$ w* L6 k% u" o
<statement sequence1>;
8 Y+ p8 e4 q$ d! J elseif <condition> then, u; j" B0 t) {. o- H0 g5 G
<statement sequence2>;
: ]6 [& U! k3 [) p% p; l- n: ~ else ) o8 X7 V: j2 B8 S2 I1 [) z
<statement sequence3>;4 H' r3 P2 g. h
end; ?# K& a5 I Y
如果分支比较多，用：
) G5 p& }, j- M inspect <expression>
' g: Y, C( _2 [$ ?& s6 S+ S when <constant_list> then" x. m. P; v: U5 ]8 o- y
<statement sequence1>;' K9 k2 t+ T" s( `9 q9 m
when <constant_list> then# p' q5 F" A7 l; V
<statement sequence2>;, _: _/ ^( a/ S
...4 y1 u1 b& [6 W1 w \) b9 }- A$ m
else
7 X: d( N) p# r) @ <statement sequence3>;
- X4 D: f+ Q" S: q$ eend;+ A3 D& \* B7 o& ~' i, L$ b0 K/ F3 \
" w. j1 p c1 M' [: U) X2循环语句
: n8 K8 L+ C1 z( L (1) from <statement sequence1>" V% c$ }+ c0 Y1 J( O$ _7 s& q
until <condition> loop7 D/ i/ X: B4 E) n( C
<statement sequence2>;
, i; S3 i) r# l& D1 A, t$ O end;$ G3 K5 R5 [! B/ B- |7 h
(2) while <condition> loop
+ O) C+ S* {- I6 A <statement sequence1>;
$ x4 S/ a0 |) T! @! D2 {8 L6 ^ end;
, m+ w1 E% E: R3 b% {7 W (3) repeat / ]- Y) o; \* ]
<statement sequence1>;
1 n' z3 R* s( l1 ^: g until <condition>;$ o9 p: { O% I
(4) for <condition> to <condition> loop: Q6 X1 p E. v# u- \9 s9 @
<statement sequence1>;
! z% ?% n4 q' ` next;* y0 {' D' _& T. n& @
3中断语句* H7 a' q+ M2 C4 k3 e
waituntil <condition> prio <integer expression>;! m1 k- z% T- w$ f
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( H1 m$ ^' N) K以上为常用的函数！6 E- [$ L- H% I+ Y
还有很多，如有需要我把资料发到你邮箱里
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