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strtok
分割字符串
strtok(<字符串>, <分隔符>)
strtok_r
string str="a, b, c, d"; const char* sep = ", "; char s_char[str.lenght()]; strcpy(s_char, str.c_str()); char *part; part = strtok(s_char, sep); while (part) { part = strtok(nullptr, sep); }