您不应该对 d 属性，请使用空格。另外 stroke-width 必须是一个长度（例如 px ）。
这应该工作：

 < svg xmlns =http://www.w3.org/2000/ svgversion =1.1> 
< / svg> 
 

请参阅 spec ，以获得更长和更准确的解释：）。

I am working on a simple map drowning with svg path tag But it dose not work on fire fox or IE (the drawing itself does not appear)

hear is a sample of them

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
<path id="lineAB" d= "M450.59,294.28l3.64-0.29l5.97,8.44l-5.54,4.18l-4.01-1.03l-5.39,0.07l-0.87,3.16l-4.52,0.22l-1.24-1.69l1.6-5.14L450.59,294.28L450.59,294.28z" stroke="blue" stroke-width="3" fill="blue" onclick="alert('Hello')"/>
</svg>

You shouldn't be using commas for the d attribute, use spaces instead. Also stroke-width has to be a length (e.g. px). This should work:

<svg xmlns="http://www.w3.org/2000/svg" version="1.1">
<path id="lineAB" d= "M450.59 294.28l3.64-0.29l5.97 8.44l-5.54 4.18l-4.01-1.03l-5.39 0.07l-0.87 3.16l-4.52 0.22l-1.24-1.69l1.6-5.14L450.59 294.28L450.59 294.28z" stroke="blue" stroke-width="3px" fill="blue" onclick="alert('Hello')"/>
</svg>

See the spec for a longer and more accurate explanation :).