text: const fs = require('fs');
  const path = require('path');
  const fileRegExp = require('file-regexp');
  const exampleRE = /\/\*===example start===\*\/\n([a-zA-Z\[\].{\s()<="-<_>}?:+0-9\u4e00-\u9fa5`!、，。【】|]*)\/\*===example end===\*\//;
  const templateRE = /\/\*===properties start===\*\/([()\[\]\w\s={}:.;,'"=>\u4E00-\u9FA5-，\/\/]*)\/\*===properties end===\*\//;
  
  const targetPropsRE = /## properties:\n```javascript\n(.*)\n```/;
  const targetUsageRE = /## usage:\n```jsx\n(.*)\n```/;
  
  let readmeFile = path.join(__dirname,'../README.md');
  let _readmeFile = path.join(__dirname,'../_README.md');
  let exampleFile = path.join(__dirname,'../src/dev.js');
  let templateFile = path.join(__dirname,'../src/components/react-anchor.js');
  
  
  
  let exampleRs = fileRegExp.fileGetContent(exampleFile,exampleRE);
  let templateRs = fileRegExp.fileGetContent(templateFile,templateRE);
  
  // set default readme file:
  fs.writeFileSync(readmeFile, fs.readFileSync(_readmeFile,'utf-8'));
  
  //do replace:
  fileRegExp.fileReplaceContent(readmeFile,targetPropsRE,templateRs);
  fileRegExp.fileReplaceContent(readmeFile,targetUsageRE,exampleRs);
  