用到c函数库的strtok()
先上个例子,显示效果
example:
char str[] = "now # is the time for all # good men to come to the # aid of their country"; char delims[] = "#"; char *result = NULL; result = strtok( str, delims ); while( result != NULL ) { printf( "result is \"%s\"\n", result ); result = strtok( NULL, delims ); }
The above code will display the following output:
result is "now " result is " is the time for all " result is " good men to come to the " result is " aid of their country"
说明:strtok(char s[], const char *delim)用来将字符串分割成一个个片段。参数s指向欲分割的字符串,参数delim则为分割字符串中包含的所有字符。当strtok()在参数s的字符串中发现参数delim中包涵的分割字符时,则会将该字符改为\0 字符。
在第一次调用时,strtok()必需给予参数s字符串,
往后的调用则将参数s设置成NULL。每次调用成功则返回指向被分割出片段的指针。
strtok() 函数里面有个static变量str 记录了第一次调用strtok()函数输入参数的余串,所以第一次调用时strtok()必需给予参数s字符串,往后的调用则将参数s设置成NULL,当参数str为NULL时函数对余串进行处理。