Update build.yml

.github/workflows/build.yml

@@ -2,18 +2,18 @@ name: Cross Build
 
 on:
   push:
-    branches: [ "main" ]  # 触发分支
+    branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
-  workflow_dispatch:       # 允许手动触发
+  workflow_dispatch:
 
 jobs:
   build:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        target_arch:      # 定义目标架构列表
-          - "mipsle-softfloat"   # MIPS 小端序软浮点
+        target_arch:
+          - "mipsle-softfloat"
     steps:
       - name: Checkout Code
         uses: actions/checkout@v4
@@ -21,7 +21,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v4
         with:
-          go-version: '1.21'  # 指定 Go 版本
+          go-version: '1.21'
 
       - name: Install Dependencies
         run: |
@@ -30,7 +30,8 @@ jobs:
 
       - name: Build
         env:
-          GOARCH: ${{ matrix.target_arch.split('-')[0] }}
+          # 使用 GitHub Actions 表达式语法分割字符串
+          GOARCH: ${{ fromJSON('["' + matrix.target_arch.split('-').join('","') + '"]')[0] }}
           GOMIPS: ${{ contains(matrix.target_arch, 'mipsle') && 'softfloat' || '' }}
           CGO_ENABLED: 0
         run: |