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c get uri from html request 


char* getUri(char data[]){
    char uri[1024];
    int flag=0;
    for(int i=0;i<strlen(data);i++){
        if(flag==0&&data[i]==' '){
            flag=1;
            continue;
        }else if(flag>0&&data[i]!=' '){
            uri[flag-1]=data[i];
            flag++;
        }else if(flag>0&&data[i]==' '){
            break;
        }
    }
    uri[flag-1]='\0';
    char* myuri=uri;
    return myuri;
}

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android hide actionbar

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go url encoding

func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits. func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits.
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go golang get disk usage free space remain info

package main import ( "fmt" "syscall" ) func main() { fmt.Println(DiskUsage("./")) } func DiskUsage(path string) uint64 { fs := syscall.Statfs_t{} err := syscall.Statfs(path, &fs) if err != nil { return 0 } return fs.Bfree * uint64(fs.Bsize) } //All space   = fs.Blocks * uint64(fs.Bsize) //Free space = fs.Bfree * uint64(fs.Bsize) //Used space= fs.All - disk.Free
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