[微信开发者工具常用](%E5%BE%AE%E4%BF%A1%E5%BC%80%E5%8F%91%E8%80%85%E5%B7%A5%E5%85%B7%E5%B8%B8%E7%94%A8.md) [获取用户openid失败](%E8%8E%B7%E5%8F%96%E7%94%A8%E6%88%B7openid%E5%A4%B1%E8%B4%A5.md) [获取用户登录态失败](%E8%8E%B7%E5%8F%96%E7%94%A8%E6%88%B7%E7%99%BB%E5%BD%95%E6%80%81%E5%A4%B1%E8%B4%A5.md) [获取用户信息失败](%E8%8E%B7%E5%8F%96%E7%94%A8%E6%88%B7%E4%BF%A1%E6%81%AF%E5%A4%B1%E8%B4%A5.md) [Q:TypeError: Cannot read property 'substr' of undefined](QTypeErrorCannotreadpropertysubstrofundefined.md) [不合法的oauth_code t](%E4%B8%8D%E5%90%88%E6%B3%95%E7%9A%84oauth_codet.md)