[
    {
        "name": "isLetter()",
        "trans": [
            "isLetter():是否是一个字母"
        ]
    },
    {
        "name": "isDigit()",
        "trans": [
            "isDigit():是否是一个数字字符"
        ]
    },
    {
        "name": "isWhitespace()",
        "trans": [
            "isWhitespace():是否是一个空白字符"
        ]
    },
    {
        "name": "isUpperCase()",
        "trans": [
            "isUpperCase():是否是大写字母"
        ]
    },
    {
        "name": "isLowerCase()",
        "trans": [
            "isLowerCase():是否是小写字母"
        ]
    },
    {
        "name": "toUpperCase()",
        "trans": [
            "toUpperCase():指定字母的大写形式"
        ]
    },
    {
        "name": "toLowerCase()",
        "trans": [
            "toLowerCase():指定字母的小写形式"
        ]
    },
    {
        "name": "toString()",
        "trans": [
            "toString():返回字符的字符串形式，字符串的长度仅为1"
        ]
    }
]