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发表于 2012-11-13 08:48:12
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1判断语句
9 J! k+ \4 o4 S* R) Z6 d/ q6 V if <condition> then
# ?4 f6 c; q, H& b* A2 s+ \ <statement sequence1>;
+ I+ e% K' i# @9 c3 ?1 ` elseif <condition> then0 G3 Z! \3 ?1 i9 X6 z. U
<statement sequence2>;
: E' m- O2 u7 j else ' \1 G6 O4 v- q8 K3 J! `
<statement sequence3>;
% g1 K3 c" U- J1 v/ N- e2 G& R end;
2 | p! H0 G9 |0 B如果分支比较多，用：
# f6 x6 S. x- t# y* L" @ inspect <expression>
. ^ _/ {; Q1 P" | when <constant_list> then, j U j0 O% M- h
<statement sequence1>;
8 c( a% X0 g: R when <constant_list> then1 O7 L* ~9 b) W8 Q, z4 c; p! C X
<statement sequence2>;' ]) A3 z" O: s; g" d4 J, a
...
0 W" I/ r: Y* t else+ {( T% z/ M4 E8 B1 P! U
<statement sequence3>;3 r6 P1 _/ P, ~0 [
end;( f4 l: M8 {; i, p! U
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2循环语句$ ~9 L& _6 z% @ R9 s: L4 L
(1) from <statement sequence1>
- X# ?$ `3 d( k3 ]% o until <condition> loop
0 u" D' ]2 E4 [ <statement sequence2>;+ _6 _+ X. I+ b& L2 a$ Z3 T2 k
end;
# m- s! k2 U, i$ K+ J5 ]1 p1 A (2) while <condition> loop" c$ W# s* G0 K; p* E
<statement sequence1>;
t& G `2 D6 C. Z: \. C* }( q end;
. Q" i1 D. z: U6 N0 A5 y/ y (3) repeat : l" r9 [+ }7 v) g4 m
<statement sequence1>;) Z$ J S" a% z# f, \+ ]# x
until <condition>;
% v% q, M' |0 G (4) for <condition> to <condition> loop# E4 B+ m1 }8 c" f% ] i
<statement sequence1>;# D5 b4 X% ~+ H; f
next;) U" K) l% {; J8 v$ \
3中断语句
9 l0 @5 q7 L. n5 r9 H! g waituntil <condition> prio <integer expression>;
; n2 j' R c% j, C0 i) g% D. ?; _7 s$ P# X1 x0 `
: O3 R3 y6 e; ]+ r: C以上为常用的函数！
/ _' W6 o7 D. ~9 z# w) ~* x5 P( H l还有很多，如有需要我把资料发到你邮箱里
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