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//js统计字符串中包含的特定字符个数function getPlaceholderCount(strSource) {  //统计字符串中包含{}或{xxXX}的个数  var thisCount = 0;  strSource.replace(/\{[xX]+\}|\{\}/g, function (m, i) {    //m为找到的{xx}元素、i为索引    thisCount++;  });  return thisCount;}标签:
原文地址:http://www.cnblogs.com/yujiangong/p/5878305.html