如果可能的话，一般应该避免拖拉.如果您的jq具有input，则可以简单地写:

Slurping should, in general, be avoided if possible. If your jq has input, you could simply write:

echo '{"a":0,"b":{"c":"C"}}{"x":33}{"asd":889}' |
  jq -n input

如果您的jq没有input，那么现在是升级到jq 1.6的好时机.如果这不是一个选项，则一定要使用-s选项，例如jq -s '.[0]'

If your jq does not have input, now would be a great time to upgrade to jq 1.6. If that is not an option, then by all means use the -s option, e.g. jq -s '.[0]'