React Native的Android端fetch的网络请求FormData请求错误：TypeError:Network request failed

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// formdataconst formData = new FormData();formData.append("code", appUserCode);formData.append("wallet", appName);// const formDataStr = 'code=' + appUserCode + '&wallet=' + appName;// 参数形式//const _body = `code=${appUserCode}&wallet=${appName}`;// json  JSON.stringify(data)// const jsonData = {//     code: appUserCode,//     wallet: appName//   };var t = {method: 'POST',headers: {//'Content-Type':'application/x-www-form-urlencoded' // ios or other deal.'content-type': 'multipart/form-data'       // android special deal method.},body: formData}, n = globalPostUrl, result;console.log("AAA-begin bind user:" + encodeCiyu);await fetch(n, t).then(e => {return e.text();}).then(e => {result = e;}).then(e => {}).catch((error) => {console.error("AAA-报错: " + error);});console.log("AAA-goood:" + result);
};

安卓的请求数据需要添加：'content-type': 'multipart/form-data'       // android special deal method.

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