多行字符串在JavaScript上沒有正確讀取

我寫了這段代碼，其中包含一個文件（字符串變種），有一個多行字符串，每行包含許多字段與選項卡分開.. 似乎JavaScript無法分開行和字段>>當我試圖打印字段沒有出現多行字符串在JavaScript上沒有正確讀取

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 <!DOCTYPE html> 
    <html lang="en"> 
     <head> 
     <meta content="text/html; charset=windows-1252" http-equiv="content-type"> 
     <script src="Scribl.min.js"></script> 

     <script> 
     function draw(canvasName) { 
     // Get Canvas and Create Chart 
     var canvas = document.getElementById(canvasName);  

     // Create Chart 
     chart = new Scribl(canvas, 500); 
    var file = '##gff-version 3 \n'+ 
'scaffold_1_A_acidus_CBS_106_47 AspGD gene 61571  62909  . + . ID=Aspfo1_0027407;Note=Protein of unknown function\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD mRNA 61571 62909 . + . ID=Aspfo1_0027407-T;Parent=Aspfo1_0027407;Note=Protein of unknown function\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD exon 61571 61698 . + . ID=Aspfo1_0027407-T-E1;Parent=Aspfo1_0027407-T\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD exon 61801 61858 . + . ID=Aspfo1_0027407-T-E2;Parent=Aspfo1_0027407-T\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD exon 62049 62909 . + . ID=Aspfo1_0027407-T-E3;Parent=Aspfo1_0027407-T\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD CDS 61571 61698 . + 0 ID=Aspfo1_0027407-P;Parent=Aspfo1_0027407-T;parent_feature_type=ORF\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD CDS 61801 61858 . + 0 ID=Aspfo1_0027407-P;Parent=Aspfo1_0027407-T;parent_feature_type=ORF\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD CDS 62049 62909 . + 2 ID=Aspfo1_0027407-P;Parent=Aspfo1_0027407-T;parent_feature_type=ORF\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD gene 192322 193023 . - . ID=Aspfo1_0027447;Note=Protein of unknown function\n'+ 
     'scaffold_1_A_acidus_CBS_106_47 AspGD mRNA 192322 193023 . - . ID=Aspfo1_0027447-T;Parent=Aspfo1_0027447;Note=Protein of unknown function\n'; 


    document.getElementById("demo").innerHTML=file; 

      //gff3(file,chart); 

      var lines = file.split("\n"); // array has the file lines, each lin has a feature >> we can pars each line now to extraxt the needed info 
     var features = []; 
     var max = undefined; 
     var min = undefined; 
     var version = undefined; 

     // parse genes 
     numFeatures = lines.length 
     for(var j=0; j < numFeatures; j++) { 
       if(lines[j] == "") break; 
       if(lines[j] == "##") continue; 
       // if it start of ## means extra info that provide meta-information about the document as a whole doc such as version //pragmas or meta-data 


       var fields = lines[j].split(" ");//tab-delimited : parsers must split on tabs, not spaces. 
       //Fields are: <seqname/id> <source> <feature/type> <start> <end> <score> <strand> <frame> [attributes] [comments] 

       if(fields[2] != "gene") continue; 
       if (type == "gene"){// it is gene so draw it // else it is exone itron etc 

        var seqid = fields[0]; 
        var source = fields[1]; 
        var type = fields[2]; 
        var start = parseInt(fields[3]); 
        var end = parseInt(fields[4]); 
        var score = fields[5]; 
        var strand = fields[6]; 
        var phase = fields[7]; 

        var attributes = fields[8].split(";"); 
        var geneID = attributes[0]; 
        var GeneNama = attributes[1]; 

      chart.addGene(start , end, strand); 
        } 

     } 

     // Draw Chart 
     chart.draw(); 

     // Create image of chart1 
     var img = chart.canvas.toDataURL("image/png"); 
     // Add link to download image 
      //document.getElementById('export').href = img; 
    } 

      </script> 
     </head> 

     <body onload="draw('canvas')"> <canvas id="canvas" width="750" height="330"></canvas> 
     <p id="demo">hi</p> 

     </body> 
    </html>

來源

2014-02-19 Nada

這些不是標籤，但是更改var fields = lines[j].split(" ");到var fields = lines[j].split(/\s+/);應該有所斬斷。

來源

2014-02-19 00:27:01 OneOfOne

它通過添加您的編輯;）我也改變數組索引以1開頭..我很驚訝索引0不起作用 – Nada

它正在與0索引.. – Nada

空白崩潰。但添加此CSS：

#demo {white-space:pre-wrap}

和魔術！：D

來源

2014-02-19 00:24:54

在哪裏添加它>> Iam新的JavaScript世界。 – Nada

多行字符串在JavaScript上沒有正確讀取

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