成员的完整列表，这些成员属于 MQTTAsync_connectOptions,包括所有继承而来的类成员

automaticReconnect	MQTTAsync_connectOptions
binarypwd	MQTTAsync_connectOptions
cleansession	MQTTAsync_connectOptions
cleanstart	MQTTAsync_connectOptions
connectProperties	MQTTAsync_connectOptions
connectTimeout	MQTTAsync_connectOptions
context	MQTTAsync_connectOptions
data	MQTTAsync_connectOptions
httpHeaders	MQTTAsync_connectOptions
httpProxy	MQTTAsync_connectOptions
httpsProxy	MQTTAsync_connectOptions
keepAliveInterval	MQTTAsync_connectOptions
len	MQTTAsync_connectOptions
maxInflight	MQTTAsync_connectOptions
maxRetryInterval	MQTTAsync_connectOptions
minRetryInterval	MQTTAsync_connectOptions
MQTTVersion	MQTTAsync_connectOptions
onFailure	MQTTAsync_connectOptions
onFailure5	MQTTAsync_connectOptions
onSuccess	MQTTAsync_connectOptions
onSuccess5	MQTTAsync_connectOptions
password	MQTTAsync_connectOptions
retryInterval	MQTTAsync_connectOptions
serverURIcount	MQTTAsync_connectOptions
serverURIs	MQTTAsync_connectOptions
ssl	MQTTAsync_connectOptions
struct_id	MQTTAsync_connectOptions
struct_version	MQTTAsync_connectOptions
username	MQTTAsync_connectOptions
will	MQTTAsync_connectOptions
willProperties	MQTTAsync_connectOptions