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我设置了一个 case 语句来将完整的状态名称转换为 html 下拉列表的短值。（是的，这似乎是多余的，但我有多个数据集进来，这是必须的）

这是我的案例陈述

 var state_switch;
//document.write(temp[1]);
var state_case = temp[1];
//document.write("state =");
//document.write(state_case);
switch (state_case)
{
case "Alabama":
  state_switch="AL"; 
  break;
case "Alaska":
  state_switch="AK"; 
  break;
case "Arizona":
  state_switch="AZ"; 
  break;
case "Arkansas":
  state_switch="AK";
  break;
case "California":
  state_switch="CA"; 
  break;
case "Colorado":
  state_switch="CO"; 
  break;
case "Connecticut":
  state_switch="CT";
  break;
case "Delaware":
  state_switch="DE";
  break;
case "District of Columbia":
  state_switch="DC"; 
  break;
case "Florida":
  state_switch="FL";
  break;
case "Geogia":
  state_switch="GA"; 
  break;
case "Hawaii":
  state_switch="HI"; 
  break;
case "Idaho":
  state_switch="ID"; 
  break;
case "Illinois":
  state_switch="IL"; 
  break;
case "Indiana":
  state_switch="IN"; 
  break;
case "Iowa":
  state_switch="IA"; 
  break;
case "Kansas":
  state_switch="KS"; 
  break;
case "Kentucky":
  state_switch="KY"; 
  break;
case "Louisiana": 
  state_switch="LA"; 
  break;
case "Maine":
  state_switch="MA"; 
  break;
case "Maryland":
  state_switch="MD"; 
  break;
case "Massachusetts": 
  state_switch="MA"; 
  break;
case "Michigan":
  state_switch="MI"; 
  break;
case "Minnesota":
  state_switch="MN"; 
  break;
case "Mississippi":
  state_switch="MS"; 
  break;
case "Missouri":
  state_switch="MO";
  break;
case "Montana":
  state_switch="MT"; 
  break;
case "Nebraska": 
  state_switch="NE"; 
  break;
case "Nevada":
  state_switch="NE"; 
  break;
case "New Hampshire":
  state_switch="NH"; 
  break;
case "New Jersey":
  state_switch="NJ"; 
  break;
case "New Mexico":
  state_switch="NM"; 
  break;
case "New York":
 state_switch="NY";
 break;
case "North Carolina":
  state_switch="NC";
  break;
case "North Dakota": 
  state_switch="ND"; 
  break;
case "Ohio":
  state_switch="OH"; 
  break;
case "Oklahoma":
  state_switch="OK";
  break;
case "Oregon":
  state_switch="OR"; 
  break;
case "Pennsylvania":
  state_switch="PA";
  break;
case "Rhode Island":
  state_switch="RI"; 
  break;
case "South Carolina": 
  state_switch="SC"; 
  break;
case "South Dakota":
  state_switch="SD"; 
  break;
case "Tennessee":
  state_switch="TN"; 
  break;
case "Texas":
  state_switch="TX"; 
  break;
case "Utah":
  state_switch="UT"; 
  break;
case "Vermont":
  state_switch="VT"; 
  break;
case "Virginia":
  state_switch="VA"; 
  break;
case "Washington":
  state_switch="WA"; 
  break;
case "West Virginia":
  state_switch="WV"; 
  break;
case "Wisconsin":
  state_switch="WI"; 
  break;
case "Wyoming":
  state_switch="WY"; 
  break;    
default:
  state_switch='';               
}

//document.write("switch - ");
//document.write(state_switch);

                    if(me.location.name){
                        $("#state").val(state_switch);


}

这是我的下拉菜单

<select name="state" id="state" class="short" style="margin-right:10px">
    <option value=""></option>
    <option value="AL">Alabama</option>
    <option value="AK">Alaska</option>
    <option value="AZ">Arizona</option>
    <option value="AR">Arkansas</option>
    <option value="CA">California</option>
    <option value="CO">Colorado</option>
    <option value="CT">Connecticut</option>
    <option value="DE">Delaware</option>
    <option value="DC">District of Columbia</option>
    <option value="FL">Florida</option>
    <option value="GA">Georgia</option>
    <option value="HI">Hawaii</option>
    <option value="ID">Idaho</option>
    <option value="IL">Illinois</option>
    <option value="IN">Indiana</option>
    <option value="IA">Iowa</option>
    <option value="KS">Kansas</option>
    <option value="KY">Kentucky</option>
    <option value="LA">Louisiana</option>
    <option value="ME">Maine</option>
    <option value="MD">Maryland</option>
    <option value="MA">Massachusetts</option>
    <option value="MI">Michigan</option>
    <option value="MN">Minnesota</option>
    <option value="MS">Mississippi</option>
    <option value="MO">Missouri</option>
    <option value="MT">Montana</option>
    <option value="NE">Nebraska</option>
    <option value="NV">Nevada</option>
    <option value="NH">New Hampshire</option>
    <option value="NJ">New Jersey</option>
    <option value="NM">New Mexico</option>
    <option value="NY">New York</option>
    <option value="NC">North Carolina</option>
    <option value="ND">North Dakota</option>
    <option value="OH">Ohio</option>
    <option value="OK">Oklahoma</option>
    <option value="OR">Oregon</option>
    <option value="PA">Pennsylvania</option>
    <option value="RI">Rhode Island</option>
    <option value="SC">South Carolina</option>
    <option value="SD">South Dakota</option>
    <option value="TN">Tennessee</option>
    <option value="TX">Texas</option>
    <option value="UT">Utah</option>
    <option value="VT">Vermont</option>
    <option value="VA">Virginia</option>
    <option value="WA">Washington</option>
    <option value="WV">West Virginia</option>
    <option value="WI">Wisconsin</option>
    <option value="WY">Wyoming</option>
</select>

我已经测试并完成了上面注释掉的打印输出，并且我得到的数据是正确的。如果我将默认值更改为“IL”，下拉菜单将显示伊利诺伊州。但是，当那是 state_case 的值时，它并没有捕捉到“伊利诺伊州”

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