标签：blog java 2014 cti javascript io
String.prototype.replaceCharAt = function(n,c){
return this.substr(0, n)+ c + this.substr(n+1,this.length-1-n);
}
Javascript --扩展String实现替换字符串中index处字符,布布扣,bubuko.com
Javascript --扩展String实现替换字符串中index处字符
标签：blog java 2014 cti javascript io
原文地址：http://blog.csdn.net/lan_liang/article/details/37109891
