版本说明旧版本：ThinkPHP5.0

新版本：ThinkPHP5.1

问题：TP5.1 中取消了 Loader::import 方法以及import和vendor助手函数，全部采用命名空间和自动加载机制，导致引入类库找不到报错

解决：因为“全部采用命名空间和自动加载机制”，所以对 composer/installed.json 做了修改(文字说明在下方注释中)

{

"name": "curl/curl",

"version": "2.3.0",

"version_normalized": "2.3.0.0",

"source": {

"type": "git",

"url": "https://github.com/php-mod/curl.git",

"reference": "3ad560b1fc1bbdf5c7681356ab953fb961f255e5"

},

"dist": {

"type": "zip",

"url": "https://api.github.com/repos/php-mod/curl/zipball/3ad560b1fc1bbdf5c7681356ab953fb961f255e5",

"reference": "3ad560b1fc1bbdf5c7681356ab953fb961f255e5",

"shasum": ""

},

"require": {

"ext-curl": "*",

"php": "^5.6 | ^7.0"

},

"require-dev": {

"phpunit/phpunit": "^5.7",

"squizlabs/php_codesniffer": "~2.1"

},

"time": "2020-03-19T20:07:26+00:00",

"type": "library",

"installation-source": "dist",

"autoload": {

"psr-0": {

"Curl": "src/"

},

//在此处添加 files 字段，把类库文件的相对路径填入

"files":[

"vendor/curl/curl/src/Curl/Curl.php"

]

},

"notification-url": "https://packagist.org/downloads/",

"license": [

"MIT"

],

"authors": [

{

"name": "php-curl-class",

"homepage": "https://github.com/php-curl-class"

},

{

"name": "Hassan Amouhzi",

"email": "hassan@anezi.net",

"homepage": "http://hassan.amouhzi.com"

},

{

"name": "user52",

"homepage": "https://github.com/user52"

}

],

"description": "cURL class for PHP",

"homepage": "https://github.com/php-mod/curl",

"keywords": [

"curl",

"dot"

]

}