问题出现的原因：
你在cmd下可以import tensorflow
sublime中新建编译系统之后设置好python也可以进行import，就是在安装了sublimeREPL之后出错

我的解决办法
默认的路径指向的是你环境变量中python路径，即你cmd下输入python的路径，现在要改变成为···\anaconda\envs\tensorflow中的python路径
1、sublime中点击首选项，浏览插件目录，打开sublimeREPL->config->python->Main.sublime-menu（拖拽至sublime打开即可）
2、找到如下部分的代码

                   {                   
                     "command": "repl_open",
                     "caption": "Python - RUN current file",
                     "id": "repl_python_run",
                     "mnemonic": "R",
                     "args": {
                        "type": "subprocess",
                        "encoding": "utf8",
                        "cmd": ["python", "-u", "$file_basename"],
                        "cwd": "$file_path",
                        "syntax": "Packages/Python/Python.tmLanguage",
                        "external_id": "python",
                        "extend_env": {"PYTHONIOENCODING": "utf-8"}
                        }
                    },
修改为

               {                   
                 "command": "repl_open",
                 "caption": "Python - RUN current file",
                 "id": "repl_python_run",
                 "mnemonic": "R",
                 "args": {
                    "type": "subprocess",
                    "encoding": "utf8",
                    "cmd": ["E:\\anaconda\\envs\\tensorflow\\python", "-u", "$file_basename"],
                    "cwd": "$file_path",
                    "syntax": "Packages/Python/Python.tmLanguage",
                    "external_id": "python",
                    "extend_env": {"PYTHONIOENCODING": "utf-8"}
                    }
                },

注意修改部分要根据你自己的虚拟环境下的路径进行填写
3、ctrl+s之后重启sublime，然后运行如下代码块

import tensorflow as tf
import os
os.environ["TF_CPP_MIN_LOG_LEVEL"] = "2"
message = tf.constant("welcome")
with tf.Session() as sess:
    print(sess.run(message).decode())

是不是输出了你想要的结果？

如果还有什么别的错误可以留言一起讨论讨论~