<!--info-header-start--><h1>去除左侧空白 <img src="https://img.shields.io/badge/-%E4%B8%AD%E7%AD%89-d9901a" alt="中等"/> <img src="https://img.shields.io/badge/-%23template--literal-999" alt="#template-literal"/></h1><blockquote><p>by Anthony Fu <a href="https://github.com/antfu" target="_blank">@antfu</a></p></blockquote><p><a href="https://tsch.js.org/106/play/zh-CN" target="_blank"><img src="https://img.shields.io/badge/-%E6%8E%A5%E5%8F%97%E6%8C%91%E6%88%98-3178c6?logo=typescript&logoColor=white" alt="接受挑战"/></a> &nbsp;&nbsp;&nbsp;<a href="./README.md" target="_blank"><img src="https://img.shields.io/badge/-English-gray" alt="English"/></a>  <a href="./README.ja.md" target="_blank"><img src="https://img.shields.io/badge/-%E6%97%A5%E6%9C%AC%E8%AA%9E-gray" alt="日本語"/></a>  <a href="./README.ko.md" target="_blank"><img src="https://img.shields.io/badge/-%ED%95%9C%EA%B5%AD%EC%96%B4-gray" alt="한국어"/></a> </p><!--info-header-end-->

实现 `TrimLeft<T>` ，它接收确定的字符串类型并返回一个新的字符串，其中新返回的字符串删除了原字符串开头的空白字符串。

例如

```ts
type trimmed = TrimLeft<'  Hello World  '> // 应推导出 'Hello World  '
```

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