SVG图片元素实现Tooltip提示功能

1、实现SVG图片中某些元素需要提示(Tooltip)的功能

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</rdf:RDF>  </metadata>  <defs     id="defs6" />  <sodipodi:namedview     pagecolor="#ffffff"     bordercolor="#666666"     borderopacity="1"     objecttolerance="10"     gridtolerance="10"     guidetolerance="10"     id="namedview4"     showgrid="false" />  <g     transform="translate(0,-479.69998)"     inkscape:label="a"     id="layer1"     inkscape:groupmode="layer" />  <g     transform="translate(-178.43235,-344.78916)"     id="g4536"     onclick="showWindown(1)">    <path       transform="translate(-280.21711,-187.73664)"       sodipodi:type="arc"       style="fill:#8498b7;fill-opacity:1;fill-rule:evenodd;stroke:none"       id="path2995-06-6"       sodipodi:cx="566.31079"       sodipodi:cy="613.2973"       sodipodi:rx="8.2432432"       sodipodi:ry="8.2432432"       d="m 574.55403,613.2973 c 0,4.55262 -3.69062,8.24325 -8.24324,8.24325 -4.55262,0 -8.24324,-3.69063 -8.24324,-8.24325 0,-4.55262 3.69062,-8.24324 8.24324,-8.24324 4.55262,0 8.24324,3.69062 8.24324,8.24324 z" />    <title id="title1">提示1</title>   <!--在每一个需要出现Tooltip（提示）的元素内添加该<title>....</title>标签即可-->  </g>  <g     id="g4541"     onclick="showWindown(2)"     transform="translate(-178.19091,-344.44771)">    <path       transform="translate(-251.94862,-188.07809)"       sodipodi:type="arc"       style="fill:#8498b7;fill-opacity:1;fill-rule:evenodd;stroke:none"       id="path2995-5-1-5"       sodipodi:cx="566.31079"       sodipodi:cy="613.2973"       sodipodi:rx="8.2432432"       sodipodi:ry="8.2432432"       d="m 574.55403,613.2973 c 0,4.55262 -3.69062,8.24325 -8.24324,8.24325 -4.55262,0 -8.24324,-3.69063 -8.24324,-8.24325 0,-4.55262 3.69062,-8.24324 8.24324,-8.24324 4.55262,0 8.24324,3.69062 8.24324,8.24324 z" />    <text       xml:space="preserve"       style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:SimSun;-inkscape-font-specification:SimSun"       x="312.39328"       y="428.49713"       id="text4059"       sodipodi:linespacing="125%"><tspan         sodipodi:role="line"         id="tspan4061"         x="312.39328"         y="428.49713">2</tspan></text>    <title       id="title2">提示 2</title>  </g>  <g     transform="translate(-179.25667,-330.30557)"     id="g4551"     onclick="showWindown(10)">    <path       transform="translate(-279.39279,-162.18259)"       sodipodi:type="arc"       style="fill:#8498b7;fill-opacity:1;fill-rule:evenodd;stroke:none"       id="path2995-8-1"       sodipodi:cx="566.31079"       sodipodi:cy="613.2973"       sodipodi:rx="8.2432432"       sodipodi:ry="8.2432432"       d="m 574.55403,613.2973 c 0,4.55262 -3.69062,8.24325 -8.24324,8.24325 -4.55262,0 -8.24324,-3.69063 -8.24324,-8.24325 0,-4.55262 3.69062,-8.24324 8.24324,-8.24324 4.55262,0 8.24324,3.69062 8.24324,8.24324 z" />    <text       xml:space="preserve"       style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:SimSun;-inkscape-font-specification:SimSun"       x="281.79181"       y="454.72696"       id="text4067"       sodipodi:linespacing="125%"><tspan         sodipodi:role="line"         id="tspan4069"         x="281.79181"         y="454.72696">10</tspan></text>    <title       id="title10">提示 10</title>  </g>  <g     transform="translate(-179.59811,-331.12989)"     id="g4556"     onclick="showWindown(11)">    <path       transform="translate(-250.54142,-161.35827)"       sodipodi:type="arc"       style="fill:#8498b7;fill-opacity:1;fill-rule:evenodd;stroke:none"       id="path2995-5-4-0"       sodipodi:cx="566.31079"       sodipodi:cy="613.2973"       sodipodi:rx="8.2432432"       sodipodi:ry="8.2432432"       d="m 574.55403,613.2973 c 0,4.55262 -3.69062,8.24325 -8.24324,8.24325 -4.55262,0 -8.24324,-3.69063 -8.24324,-8.24325 0,-4.55262 3.69062,-8.24324 8.24324,-8.24324 4.55262,0 8.24324,3.69062 8.24324,8.24324 z" />    <text       xml:space="preserve"       style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:SimSun;-inkscape-font-specification:SimSun"       x="310.35318"       y="455.0184"       id="text4071"       sodipodi:linespacing="125%"><tspan         sodipodi:role="line"         id="tspan4073"         x="310.35318"         y="455.0184">11</tspan></text>    <title       id="title11">提示 11</title>  </g>  <g     transform="translate(-179.38401,-331.12989)"     id="g4561"     onclick="showWindown(24)">    <path       transform="translate(-224.16304,-161.35827)"       sodipodi:type="arc"       style="fill:#8498b7;fill-opacity:1;fill-rule:evenodd;stroke:none"       id="path2995-0-1-9"       sodipodi:cx="566.31079"       sodipodi:cy="613.2973"       sodipodi:rx="8.2432432"       sodipodi:ry="8.2432432"       d="m 574.55403,613.2973 c 0,4.55262 -3.69062,8.24325 -8.24324,8.24325 -4.55262,0 -8.24324,-3.69063 -8.24324,-8.24325 0,-4.55262 3.69062,-8.24324 8.24324,-8.24324 4.55262,0 8.24324,3.69062 8.24324,8.24324 z" />    <text       xml:space="preserve"       style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:SimSun;-inkscape-font-specification:SimSun"       x="336.58304"       y="455.60132"       id="text4075"       sodipodi:linespacing="125%"><tspan         sodipodi:role="line"         id="tspan4077"         x="336.58304"         y="455.60132">24</tspan></text>    <title       id="title24">提示 24</title>  </g>  <g     transform="translate(-178.19091,-345.39409)"     id="g4546"     onclick="showWindown(9)">    <path       transform="translate(-225.35614,-187.13171)"       sodipodi:type="arc"       style="fill:#8498b7;fill-opacity:1;fill-rule:evenodd;stroke:none"       id="path2995-0-4-5-5"       sodipodi:cx="566.31079"       sodipodi:cy="613.2973"       sodipodi:rx="8.2432432"       sodipodi:ry="8.2432432"       d="m 574.55403,613.2973 c 0,4.55262 -3.69062,8.24325 -8.24324,8.24325 -4.55262,0 -8.24324,-3.69063 -8.24324,-8.24325 0,-4.55262 3.69062,-8.24324 8.24324,-8.24324 4.55262,0 8.24324,3.69062 8.24324,8.24324 z" />    <text       xml:space="preserve"       style="font-size:10px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;line-height:125%;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;font-family:SimSun;-inkscape-font-specification:SimSun"       x="338.51324"       y="429.66168"       id="text4063"       sodipodi:linespacing="125%"><tspan         sodipodi:role="line"         id="tspan4065"         x="338.51324"         y="429.66168">9</tspan></text>    <title       id="title9">提示 9</title>  </g></svg>

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