toTXT(str) {
var RexStr = /\<|\>|\"|\'|\&| | /g
str = str.replace(RexStr,
function(MatchStr) {
switch(MatchStr) {
case "<":
return "<";
break;
case ">":
return ">";
break;
case "\"":
return """;
break;
case "'":
return "'";
break;
case "&":
return "&";
break;
case " ":
return " ";
break;
case " ":
return " ";
break;
default:
break;
}
}
)
return str;
}