后台返回为字符串null时,变成空字符串
+ (NSString *)noNullStringWith:(id)dataString
{
NSString *nullString = dataString;
if ([nullString isKindOfClass:[NSString class]] && nullString.length) {
return nullString;
}
else {
return @"";
}
}
+ (NSString *)noNullStringWith:(id)dataString
{
NSString *nullString = dataString;
if ([nullString isKindOfClass:[NSString class]] && nullString.length) {
return nullString;
}
else {
return @"";
}
}