Do you charge by word or by article?

Hello, messages are charged by the article, but there is a word limit for each message. Beijing mobile number, if the pure Chinese characters are 70 Chinese characters (including punctuation); If it is pure English, it is 140 English letters (including a punctuation mark; If there are both Chinese characters and English, 70 Chinese characters are charged as a short message, and an English letter or punctuation mark is also regarded as a Chinese character. Please refer to.