View Compilation Error

0_0_20475297_20535.c: In function 'dzero':
0_0_20475297_20535.c:4:29: error: expected declaration specifiers before '/' token
 void dzero(char * a,int len)//消去前置0
                             ^
0_0_20475297_20535.c:4:29: error: stray '\317' in program
0_0_20475297_20535.c:4:29: error: stray '\373' in program
0_0_20475297_20535.c:4:29: error: stray '\310' in program
0_0_20475297_20535.c:4:29: error: stray '\245' in program
0_0_20475297_20535.c:4:29: error: stray '\307' in program
0_0_20475297_20535.c:4:29: error: stray '\260' in program
0_0_20475297_20535.c:4:29: error: stray '\326' in program
0_0_20475297_20535.c:4:29: error: stray '\303' in program
0_0_20475297_20535.c:25:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 {
 ^
0_0_20475297_20535.c:59:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
 {
 ^
0_0_20475297_20535.c:74:1: error: expected '{' at end of input
 }
 ^