js实现StringBuffer的简单实例

function StringBuffer() { 
  this.__strings__ = []; 
}; 
StringBuffer.prototype.Append = function (str) { 
  this.__strings__.push(str); 
  return this; 
}; 
//格式化字符串 
StringBuffer.prototype.AppendFormat = function (str) { 
  for (var i = 1; i 

var sbHtml=new StringBuffer(); 
sbHtml.Append('hello'); 
sbHtml.Append('world'); 
   
console.log(sbHtml.ToString());