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(1)puts函数:字符串输出函数,一般形式为:puts(字符数组);
作用是将一字符串输出到终端。
可以包含转义字符。
(2)gets函数:字符串输入函数,一般形式为:gets()字符数组。
作用是从终端输入一个字符串到字符串组,并且得到一个函数值,该值是字符数组的起始地址。
(3)strcat函数:字符串连接字符,一般为,strcat(字符串数组1,字符串数组2)
作用是将2连接到1的后面,然后把数组存在1中,所以1的空间要足够大。
函数调用后得到一个函数值——字符数组1的起始地址。
(4)strcpy和strncpy函数:字符串复制函数。strcpy(str1,str2)的形式,将str2复制进入str1当中。
注:str1必须为数组名形式,且空间必须大于str2,str2可以是数组名形式,也可以是字符串常量。
(5)strcmp函数:字符串比较函数,一般为strcmp(str1,str2)的形式。
作用就是比较字符串1与字符串2。
(6)strlen函数:测量字符串长度,一般为strlen(字符数组)。
作用:测量实际长度,但是不包括\0。
(7)strlwr函数与strupr函数:大小写互换函数,一般为:strlwr(字符串)。
strlwr为大换小,strupr为小换大。