像这样的东西,

function createCheckBox( idsToShow ) {
    for( i = 0 ; i < 15 ; i++ ) {                
       console.log( idsToShow.indexOf('main' + i + '|' ) + '  ' + 'main' + i + '|' );
       if( idsToShow != '' && idsToShow.indexOf('main' + i + '|' ) == -1 ) continue;
       checkBoxs += "<li> <input type=\"checkBox\" id=\"main" +  i + "\" value=\"Example" + i + "\" name=\"lbl"+ i +"\" /> <label id=\"lbl"+ i +"\">Example" + i + "</label></li>";                                    
       ids += 'main' + i + '|'; //is the check Box id.                     
    }
}