怎么截取不规则字符串

Question

例如我有一个1232{按钮1}{按钮2}765432这样动态的字符串(长度不固定)我怎么拿到1231和{按钮1}，{按钮2}，765432?

Answer 1

  var a='1232{按钮1}{按钮2}765432'
    console.log(a.replace(/{/,',{').replace(/}/g,'},').split(','),'9999');

输出

Answer 2

你再怎么样也需要有一个具体的规则来说明内容如何区分的啊，比如
1232{按钮1}{按钮2}765432则/^(\d+)(\{按钮\d\})(\{按钮\d\})(\d+)$/可以从捕获的子匹配项上获取各个部分。例如

var re=/^(\d+)(\{按钮\d\})(\{按钮\d\})(\d+)$/;
var rtall=re.exec("1232{按钮1}{按钮2}765432");
console.log(rtall);

Answer 3

let str = "1232{按钮1}{按钮2}765432"
function trans (str) {
  let count = 0
  let matched = []
  let subStr = ''
  for (let i = 0, len = str.length; i < len; i++) {
    let cur = str[i]
    if (cur === '{') {
      if (count === 0) {
        if (subStr.length) matched.push(subStr)
        subStr = cur
      } else {
        subStr += cur
      }
      count++
    } else if (cur === '}') {
      subStr += cur
      count--
      if (count === 0) {
        matched.push(subStr)
        subStr = ''
      }
    } else {
      subStr += cur
    }
  }
  if (subStr.length) matched.push(subStr)
  return matched
}
trans(str)