{"dt":[{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"},{"ID":"37","PARENTID":"3","AREANAME":"蚌埠","TYPEID":"2","SORTORDER":"100"},{"ID":"38","PARENTID":"3","AREANAME":"巢湖","TYPEID":"2","SORTORDER":"100"},{"ID":"39","PARENTID":"3","AREANAME":"池州","TYPEID":"2","SORTORDER":"100"},
ID":"3401","PARENTID":"3","AREANAME":"合肥","TYPEID":"2","SORTORDER":"100"}
]} var id = [];
id = dt;
id.length=5;但是
{"dt":[{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"}
]}
id.length=0;
帮忙怎么处理后 有一条数据是 id.length=1???
ID":"3401","PARENTID":"3","AREANAME":"合肥","TYPEID":"2","SORTORDER":"100"}
]} var id = [];
id = dt;
id.length=5;但是
{"dt":[{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"}
]}
id.length=0;
帮忙怎么处理后 有一条数据是 id.length=1???
解决方案 »
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就是 json 转换成数组 如有有4条数据 那数组的length=4;
但是 json 只有一个数据转换成数组 那length=0;。。
怎么处理后 在只有一条记录是 lenth=1?
if(dt.length...) ?????
{"dt":[{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"}
]}内容是[{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"}]
这个数组里只包含一个json格式对象
即:{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"}所以
dt.length ==1
dt是不是个数组了?
{"dt":{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"}
}
]}就是dt.length ==1
如果是1就不是数组
就是
{"dt":{"ID":"36","PARENTID":"3","AREANAME":"安庆","TYPEID":"2","SORTORDER":"100"}
}我想问下前台怎么处理后 赋给他的值的length=1了?