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1、在vi里想一次性替换以下内容，在线等...
'username' => 'hhhhdb','username' => 'dasfasfsaf',
将以上类似的内容替换成
'username' => 'admin',
自己匹配了半天也匹配不上，期待大神...
拥有18年软件开发和IT教学经验。曾任多家上市公司技术总监、架构师、项目经理、高级软件工程师等职务。 网络人气名人讲师，...
%s/\('username'\s\+=>\s\+'\)[^'"]\+'/\1admin'/g
%s/'username' => '.*'/'username' => 'admin'
%s/'username' => '\w\+'/'username' => 'admin'/
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
%s/\('username'\s\+=>\s\+'\)[^'"]\+'/\1admin'/g
%s/'username' => '.*'/'username' => 'admin'
%s/'username' => '\w\+'/'username' => 'admin'/