转义符

json = "[{"
        +"\"taxNo\":\""+taxNo+"\","
        +"\"invoiceType\":\""+invoiceType+"\","
        +"\"invoiceNo\":\""+invoiceNo+"\","
        +"\"invoiceCode\":\""+invoiceCode+"\","
        +"\"invoiceDate\":\""+invoiceDate+"\","
        +"\"checkCode\":\""+checkCode+"\""
        +"}]";
        
        
    
        " taxNo: "+taxNo+" ,  "
        
        
        
         "message": "{\"currentTime\":1400077615368,
         \"direction\":0,
         \"id\":1,
         \"latitude\":29.5506,
         \"longitude\":106.6466}"
         
         
         
         
         
         {
    "ret": "0", 
    "Weathers": "[{\"date\":\"2017-03-20\",\"weatherType\":\"阴，大部分地区有零星小雨或小雨，上午能见度2-5km转阴天间多云\",\"temperature_min\":\"6\",\"wind_force\":\"微风\",\"temperature_max\":\"12\",\"wind_direction\":\"\"},{\"date\":\"2017-03-21\",\"weatherType\":\"阴转多云\",\"temperature_min\":\"6\",\"wind_force\":\"微风\",\"temperature_max\":\"13\",\"wind_direction\":\"\"},{\"date\":\"2017-03-22\",\"weatherType\":\"多云转阴\",\"temperature_min\":\"6\",\"wind_force\":\"微风\",\"temperature_max\":\"14\",\"wind_direction\":\"\"},{\"date\":\"2017-03-23\",\"weatherType\":\"阴转小雨\",\"temperature_min\":\"3\",\"wind_force\":\"微风\",\"temperature_max\":\"10\",\"wind_direction\":\"\"},{\"date\":\"2017-03-24\",\"weatherType\":\"雨夹雪转多云\",\"temperature_min\":\"0\",\"wind_force\":\"微风\",\"temperature_max\":\"5\",\"wind_direction\":\"\"},{\"date\":\"2017-03-25\",\"weatherType\":\"多云转晴\",\"temperature_min\":\"5\",\"wind_force\":\"微风转3到4级\",\"temperature_max\":\"13\",\"wind_direction\":\"\"},{\"date\":\"2017-03-26\",\"weatherType\":\"晴\",\"temperature_min\":\"4\",\"wind_force\":\"3到4级\",\"temperature_max\":\"14\",\"wind_direction\":\"\"}]"
}