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集合1
A~SIZE2~15.22~15.22~15.22
B~SIZE1~15.22~15.22~15.22
C~SIZE1~15.22~15.22~15.22
集合2
A~SIZE1~15.22~15~15.22
B~SIZE2~15.22~15.22~15.22
C~SIZE2~15.22~15~15.22
想得到集合3
比对条件是如果首字母相同并且第三个~后数字不同时,就用集合2的SIZE1内容替换集合1中SIZE,集合1其他内容不变生成集合3
A~SIZE1~15.22~15.22~15.22
B~SIZE1~15.22~15.22~15.22
C~SIZE2~15.22~15.22~15.22
实际情况两个集合比较大,每个集合几W条记录,~有100个左右
最好能给段代码,多谢