vara=["w","e","b","前","端","开","发"];varb=a.splice(3,4);document.write(a.join(""));document.write(b.join(""));输出结果是()。A、web前.端开发B、we.b前端开发C、web前端开发D、前端开发web
vara=["w","e","b","前","端","开","发"];varb=a.splice(3,4);document.write(a.join(""));document.write(b.join(""));输出结果是()。
- A、web前.端开发
- B、we.b前端开发
- C、web前端开发
- D、前端开发web
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