Using the standard library JSON to serialize structures, strange spaces may appear when Chinese characters appear.

[LuanShiLiuNian]

Go version

go version go1.23.5 windows/386

Output of go env in your module/workspace:

set GO111MODULE=
set GOARCH=386
set GOBIN=
set GOCACHE=C:\Users\XiaoZhang\AppData\Local\go-build
set GOENV=C:\Users\XiaoZhang\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=386
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=F:\DevelopmentTools\goPath\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=F:\DevelopmentTools\goPath\
set GOPRIVATE=
set GOPROXY=https://goproxy.cn
set GOROOT=F:\DevelopmentTools\golang
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLCHAIN=auto
set GOTOOLDIR=F:\DevelopmentTools\golang\pkg\tool\windows_386
set GOVCS=
set GOVERSION=go1.23.5
set GODEBUG=
set GOTELEMETRY=local
set GOTELEMETRYDIR=C:\Users\XiaoZhang\AppData\Roaming\go\telemetry
set GCCGO=gccgo
set GO386=sse2
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=0
set GOMOD=NUL
set GOWORK=
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m32 -fno-caret-diagnostics -Qunused-arguments -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=C:\Users\XIAOZH~1\AppData\Local\Temp\go-build2387523124=/tmp/go-build -gno-record-gcc-switches

What did you do?

type ApiRequest struct {
Model string json:"model"
Messages []Message json:"messages"
Temperature float64 json:"temperature"
ResponseFormat struct {
Type string json:"type"
} json:"response_format"
}

type Message struct {
Role string json:"role:"
Content string json:"content"
}

apiReq := &ApiRequest{
	Model: "deepseek-ai/DeepSeek-R1-Distill-Llama-8B",
	Messages: []Message{
		{
			Role:    "user",
			Content: "你好，你在干什么。",
		},
	},
	Temperature: 1.3,
	ResponseFormat: struct {
		Type string `json:"type"`
	}{
		Type: "text",
	},
}

marshal, err := json.Marshal(apiReq)
if err != nil {
	return "", err
}
println(string(marshal))

What did you see happen?

console out ：
{"model":"deepseek-ai/DeepSeek-R1-Distill-Llama-8B","messages":[{"role:":"user","content":"你好，你在干什么。"}],"temperature":1.3,"r esponse_format":{"type":"text"}}

What did you expect to see?

Better handling of Chinese

[gabyhelp]

Related Issues

• affected/package: encoding/json can not encoding Http Response entity #50307 (closed)
• encoding/json: Marshal cant parse chinese punctuation into key #29476 (closed)
• cmd/compile: the results of "go test" and "go test -c" are not the same #45626 (closed)
• import/path: issue title #69161 (closed)
• encoding/json: encoding.UnmarshalText() produces unexpected values when json.Unmarshaling. #38046 (closed)
• encoding/json: Decoder return errors that are not intuitive #54044 (closed)
• encoding/json: unexpected output with SetEscapeHTML(false) #20581 (closed)
• encoding/json: JSON tags don't handle empty properties, non-standard characters #22518
• affected/package: encoding/json #58511 (closed)

Related Discussions

• json Marshaling of ">" produces unicode

_{(Emoji vote if this was helpful or unhelpful; more detailed feedback welcome in this discussion.)}

[seankhliao]

that like more like a display issue with your terminal, go's output looks fine.
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