Common Unicode encoding range

common Unicode Coding range

We often use it to judge whether a character or string contains Chinese , english , Special symbols, etc . At this time, we can judge Unicode To determine the type of a character . Of course, it can be judged directly Unicode code , But in view of habits , What is provided below is Unicode The number interval corresponding to the code . After all, the essence of characters is to store and encode through binary .

• Chinese characters ：[0x4e00,0x9fa5]（ Or decimal [19968,40869]）
• Numbers ：[0x30,0x39]（ Or decimal [48, 57]）
• Lowercase letters ：[0x61,0x7a]（ Or decimal [97, 122]）
• Capital ：[0x41,0x5a]（ Or decimal [65, 90]）
• other ： Except all

for example ：

/** *  Whether it contains Chinese characters  */
fun String.isContainChinese(): Boolean {
    this.forEach {
        val c = it.toInt()
        if (c in 19968..40868) {
            return true
        }
    }
    return false
}

【 Reprint 】Unicode and ASCII The difference between