JS正则表达式 替换括号,尖括号等
/*正则表达式 替换括号,尖括号等*/
function 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;
		default:
			break;
		}
	})
	return str;
}例:
替换前:<script>alert('test---test');</script>
替换后:<script>alert('test---test');</script>
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