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发表于 2012-11-13 08:48:12
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1判断语句5 s, p. e" I/ R# s4 M! z0 ]8 Q
if <condition> then
6 i9 S5 B7 S& X p$ j/ d <statement sequence1>;9 X, s7 F; z8 y
elseif <condition> then1 Z! V' v8 ]4 R5 D! I
<statement sequence2>;: k3 U+ P7 c+ e" O( z
else # X+ v0 g& H" t0 u- v# j+ V
<statement sequence3>;5 G4 h9 H; X+ S2 h! l9 g
end;
/ Z7 ]$ d! N$ Z( ~8 C) M# y如果分支比较多，用：. n) U, ?9 D: A$ M: [
inspect <expression>
$ l t9 R$ h0 D# _' F- l8 M when <constant_list> then+ G6 T2 W7 w. S1 R& S; z2 h
<statement sequence1>;3 k# C0 r0 y7 H% h( H& n3 T
when <constant_list> then
8 a# N, a+ z9 u( n, s0 E- f5 S+ x <statement sequence2>;* U) r$ Y8 l8 p$ Y; l' D7 k/ g- H
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else
( u2 q7 i7 R8 }" \) s, j J$ U <statement sequence3>;
3 B) n7 G, d6 v9 Dend;; \) b0 D3 v3 D, v' }5 p3 X
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2循环语句
- u" `- x7 m" y( D- q4 e6 O (1) from <statement sequence1>
! R C, A# o# G. h' i until <condition> loop5 L3 c5 P' t+ V" {7 S1 ^
<statement sequence2>;$ R& F0 ?* `' `$ Q8 ~( B2 m6 r% o
end;
9 G7 d( U6 \8 Z @% h% b (2) while <condition> loop2 P) X( A. }' x0 s5 @9 t& Q; G* t
<statement sequence1>;# G2 i9 m/ d6 q2 a; x( M6 B
end;
, B' x# H% J/ m0 t4 i' q, T" p7 h (3) repeat
0 A" A2 Z+ q9 | <statement sequence1>;! a, I0 b' u3 }4 Z
until <condition>;( m# H6 A" q# O0 A& o
(4) for <condition> to <condition> loop
2 D% H3 N b9 R4 g7 b, o S <statement sequence1>;# _. A k8 Q" K; n: n0 F! B
next;
1 V0 l- S X% ^3 G; w3 U3中断语句+ F. |/ H% H" J$ d% S4 D l/ ] W
waituntil <condition> prio <integer expression>;4 K5 |4 m4 L9 z& F6 w/ I
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以上为常用的函数！
2 B# G$ g9 c$ b* S3 r还有很多，如有需要我把资料发到你邮箱里 $ h* R4 S0 a% t. ?( Q% |
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