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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                [ctype_alnum 是否只有字母和數字](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_alnum%E6%98%AF%E5%90%A6%E5%8F%AA%E6%9C%89%E5%AD%97%E6%AF%8D%E5%92%8C%E6%95%B0%E5%AD%97.md) [ctype_alpha 是否是字母](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_alpha%E6%98%AF%E5%90%A6%E6%98%AF%E5%AD%97%E6%AF%8D.md) [ctype_cntrl 是否是控制符(\n\t\r)](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_cntrl%E6%98%AF%E5%90%A6%E6%98%AF%E6%8E%A7%E5%88%B6%E7%AC%A6ntr.md) [ctype_digit 是否是整數](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_digit%E6%98%AF%E5%90%A6%E6%98%AF%E6%95%B0%E5%AD%97.md) [ctype_lower / ctype_upper 是否是 小/大 寫字母](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_lower%E6%98%AF%E5%90%A6%E6%98%AF%E5%B0%8F%E5%86%99%E5%AD%97%E6%AF%8D.md) [ctype_graph 是否是可見字符(空格不算可見)](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/%E6%98%AF%E5%90%A6%E6%98%AF%E5%8F%AF%E8%A7%81%E5%AD%97%E7%AC%A6.md) [ctype_print 是否是可見字符(空格算可見)](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_print%E6%98%AF%E5%90%A6%E6%98%AF%E5%8F%AF%E8%A7%81%E5%AD%97%E7%AC%A6%E7%A9%BA%E6%A0%BC%E7%AE%97%E5%8F%AF%E8%A7%81.md) [ctype_punct 是否是除字母,數字,空格外的特殊字符](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_punct%E6%98%AF%E5%90%A6%E6%98%AF%E9%99%A4%E5%AD%97%E6%AF%8D,%E6%95%B0%E5%AD%97,%E7%A9%BA%E6%A0%BC%E5%A4%96%E7%9A%84%E7%89%B9%E6%AE%8A%E5%AD%97%E7%AC%A6.md) [ctype_space 是否是空白字符](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_space%E6%98%AF%E5%90%A6%E6%98%AF%E7%A9%BA%E7%99%BD%E5%AD%97%E7%AC%A6.md) [ctype_xdigit 是否包含16進制字符([0-9 和 [A-Fa-f] ])](%E5%AD%97%E7%AC%A6%E7%B1%BB%E5%9E%8B%E6%A3%80%E6%B5%8B/ctype_xdigit%E6%98%AF%E5%90%A6%E5%8C%85%E5%90%AB16%E8%BF%9B%E5%88%B6%E5%AD%97%E7%AC%A6%5B0-9%E5%92%8C%5BA-Fa-f%5D%5D.md)
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