ios - 如何在字符串 ios 中添加空格

Question

我有一个用于 post 方法的字符串。如果字符串类似于 "hello.." 则值会在 post 方法中传递。但如果字符串类似于“hello world”，则不采用 post 方法。如果我在字符串中使用空格，它就不起作用。请帮助我。

- (void) constructURL
{
    NSMutableString* curl = [[NSMutableString alloc] init];

    [curl appendString:@"XXXXX"];
    [curl appendString:[NSString stringWithFormat:@"?eventid=%@", eventID]];
    [curl appendString:[NSString stringWithFormat:@"&ForumID=%@", forumID]];
    [curl appendString:[NSString stringWithFormat:@"&parentPostID=%@", parentPostID]];
    [curl appendString:[NSString stringWithFormat:@"&userid=%@", userID]];
    [curl appendString:[NSString stringWithFormat:@"&PostContent=%@", postContent]];

    url = [NSURL URLWithString:curl];
}

Answer 1

我认为你需要像这样编码你的字符串:

NSString* encodedString = [@"Hello World" stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding];