TIOBE发布4月编程语言排行榜

Position Apr 2009	Position Apr 2008	Delta in Position	Programming Language	Ratings Apr 2009	Delta Apr 2008	Status
1	1		Java	19.341%	-1.55%	A
2	2		C	15.472%	-0.04%	A
3	3		C++	10.741%	-0.06%	A
4	4		PHP	9.888%	-0.32%	A
5	5		(Visual) Basic	9.097%	-0.69%	A
6	7		Python	6.080%	+1.18%	A
7	8		C#	4.059%	+0.00%	A
8	9		JavaScript	3.678%	+0.75%	A
9	6		Perl	3.462%	-2.09%	A
10	10		Ruby	2.569%	-0.07%	A
11	11		Delphi	2.272%	+0.25%	A
12	14		PL/SQL	1.086%	+0.33%	A
13	12		D	1.076%	-0.37%	A
14	13		SAS	0.792%	-0.13%	A
15	15		Pascal	0.717%	+0.12%	A-
16	21		Logo	0.707%	+0.37%	A
17	27		ABAP	0.658%	+0.42%	B
18	26		RPG (OS/400)	0.646%	+0.40%	B
19	19		Lua	0.491%	+0.12%	B
20	23		MATLAB	0.482%	+0.22%	B

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