lengthWithChinese static method

int lengthWithChinese(
  1. String str
)

计算字符串长度（中文算两个字符） Calculate string length (Chinese characters count as two)

Implementation

static int lengthWithChinese(String str) {
  int length = 0;
  for (final rune in str.runes) {
    length += rune > 255 ? 2 : 1;
  }
  return length;
}