[char 字符处理类](char%E5%AD%97%E7%AC%A6%E5%A4%84%E7%90%86%E7%B1%BB.md) [distance 定位处理类](distance%E5%AE%9A%E4%BD%8D%E5%A4%84%E7%90%86%E7%B1%BB.md) [file 文件处理类](file%E6%96%87%E4%BB%B6%E5%A4%84%E7%90%86%E7%B1%BB.md) [rand 随机处理类](rand%E9%9A%8F%E6%9C%BA%E5%A4%84%E7%90%86%E7%B1%BB.md) [time 时间处理类](time%E6%97%B6%E9%97%B4%E5%A4%84%E7%90%86%E7%B1%BB.md) [zip 压缩处理类](zip%E5%8E%8B%E7%BC%A9%E5%A4%84%E7%90%86%E7%B1%BB.md)