do LANGUAGE plpgsql $$ declare top integer; row_org dbo.a_org_type%rowtype; begin /* Insert real code here */ ; ; .. loop insert into dbo.a_org_type(id, des) values(top, 'shang hai ' || top); ; end loop; end; $$
一.map函数 1.自定义函数,实现类似于map函数的功能 num_l = [1,3,4,5,6,9] def power(n): return n ** 2 def map_test(func,array): li0 = [] for i in array: p = func(i) li0.append(p) return li0 f = map_test(power,num_l) 运用自己定义的函数来计算 print(f) f = map_test(lambda x: x ** 2, num