carloscn / carloscn/structstudy
替换字符串空格（双指针法）
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字符串
- Dominant language
- C
- Stars
- 4
- Forks
- 1
- PR merge metrics
- No merged PRs in 30d
Description
### 题目描述
请实现一个函数，将一个字符串中的每个空格替换成“%20”。例如，当字符串为`We Are Happy`.则经过替换之后的字符串为`We%20Are%20Happy`。
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