Java 判断字符串第一位和最后一位，并截取

public static void main(String[] args) {
        String str = ""{"TaxCode":"91321000071018179B","RetMsg":"1011-XXX开启成功[0000,]"," +
                ""MachineNo":"0","TaxClock":"2016-11-02 11:21:30","RetCode":"1011"," +
                ""IsInvEmpty":"0","CorpName":"XXXX分公司","CheckCode":"661XXX4681"," +
                ""IsLockReached":"0","InvLimit":"0.0","IsRepReached":"0"}"";
        if (str.startsWith(""")) {
            str = str.substring(1);
        }
        if (str.endsWith(""")) {
            str = str.substring(0,str.length() - 1);
        }
        System.out.println(str);
    }

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判断第一位是否为"，如果是，返回true，截取第一位。

判断最后一位是否为"，如果是，返回true，截取最后一位。