+(NSMutableURLRequest  *)putRequestWithUrl:(NSString *)urlString HTTPMethod:(NSString *)httpMethod HTTPBody:(NSString *)httpBody;


+(NSMutableURLRequest  *)putRequestWithUrl:(NSString *)urlString HTTPMethod:(NSString *)httpMethod HTTPBody:(NSString *)httpBody
{
    //1.創(chuàng)建URL
    NSURL *url = [NSURL URLWithString:urlString];
    
    //2.創(chuàng)建NSURLRequest
    // 注意: 如果需要設(shè)置請(qǐng)求體或者其他請(qǐng)求參數(shù), 必須使用NSURLRequest的子類
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    
    //設(shè)置模式      // 注意點(diǎn): 必須大寫
    request.HTTPMethod = httpMethod;
    //設(shè)置請(qǐng)求體 // 注意: 只要是POST請(qǐng)求, 系統(tǒng)內(nèi)部會(huì)自動(dòng)添加?
    // post發(fā)送中文沒有問題
    request.HTTPBody = [httpBody dataUsingEncoding:NSUTF8StringEncoding];
    // 設(shè)置超時(shí)時(shí)間
    request.timeoutInterval = 10;
    [request setValue:@"application/x-www-form-urlencoded"
   forHTTPHeaderField:@"Contsetent-Type"];
    
    return  request;
    
    
}