writeFileContent static method
写字符串到文件
Implementation
static void writeFileContent(String filePath, String content,{bool append = false}) {
File file = File(filePath);
if (append) {//追加
file.writeAsStringSync(content, mode: FileMode.append);
} else {//覆盖
file.writeAsStringSync(content, mode: FileMode.write);
}
}