javascript编程的组件

				
				
				保持文本格式的两种方法
				
				
				
				
				
				
				
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				      保持文本格式的两种方法
				  
				    1.<script language=javascript>function 
				      coder(str){var s = "";if (str.length == 0) return "";for 
				      (var i=0; i<str.length; i++){switch 
				      (str.substr(i,1)){case "<" : s += "&lt;"; break;case 
				      ">" : s += "&gt;"; break;case "&" : s += "&amp;"; 
				      break;case " " : s += "&nbsp;"; break;case "\'" : s += 
				      "&#39;"; break;case "\"" : s += "&quot;"; break;case "\n" 
				      : s += "<br>"; break;default : s += str.substr(i,1); 
				      break;}}return s;}2.<%Function 
				      coder(str)Dim result,L,iIf IsNull(str) Then : coder="" : Exit 
				      Function : End IfL=Len(str) : result=""For i = 1 to Lselect 
				      case mid(str,i,1)case "<" : result=result+"&lt;"case ">" 
				      : result=result+"&gt;"case chr(34) : 
				      result=result+"&quot;"case "&" : 
				      result=result+"&amp;"case chr(13) : 
				      result=result+"<br/>"case chr(9) : result=result+"&nbsp; 
				      &nbsp; "case chr(32) : result=result+"&nbsp;"case else : 
				      result=result+mid(str,i,1)end selectNextcoder=resultEnd 
				      Function %> 
				      
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