后端接收的是 string格式
// 下面这个是 c++ 中定义的json
json object1 = R"({"ProjName":"*********************hn","FileName":"eeee .catpart", "ProjNumber":30, "JpgFile":"kk. jpg","Comments": "cdr for employee ","ProjType": "graphic design","ProjState": 1, "version": 1,"CreateTime": " 20230 728","UpdateTime": "20230608","pid": 6})"
//现在需要前端发送上面这个json:
xhr.send('json_data=');
//其中后面跟的就是 "ProjName":"*********************hn","FileName":"eeee .catpart", "ProjNumber":30, "JpgFile":"kk. jpg","Comments": "cdr for employee ","ProjType": "graphic design","ProjState": 1, "version": 1,"CreateTime": " 20230 728","UpdateTime": "20230608","pid": 6
带很多双引号,具体该怎么写?是不是需要转义字符